September 29, 2007 (070407) MV

1. Wolff Rearrangement, Ynolate, Ketene
2. Criegee Reaction, Barbier Reaction, Allene
3. Bredereck's Reagent
4. Baylis-Hillman Reaction
5. Eastwood Olefin Synthesis, Corey-Winter Olefin Synthesis

September 22, 2007 (041807) YL

1. Frinkelstein Reaction, Thiourea, N-Acyl Inime.
2. Dichloroketene Luche Reduction.
3. Acylsilane, Epoxysilane, Brook Rearrangement, Cope Rearrangement.
4. Free Radical Reaction.
5. Ketone Synthesis, Alkylidene Carbene.

September 15, 2007 (041007) TN

1. Cope Elimination, Wagner-Meerwein Rearrangement
2. Prins-Pinacol Cyclization
3. Wagner-Meerwein Rearrangement
4. Cyclobutadiene, Grubbs Catalyst, Cope Rearrangement
5. Kulinkovich Reaction, Nitrite Ester, Barton Reaction, Isoxazole

September 8, 2007 (040407) YL

1. Claisen Rearrangement, Mislow-Evans Reaction
2. Gold(I) Catalyst
3. Knoevenagel Condensation, Hetero-Diels-Alder Reaction, Meldrum's Acid
4. Ritter Reaction; Curtius Rearrangement
5. Siloxyalkyne, Wolf Rearrangement

September 1, 2007 (062307) MB

1. Aza-Claisen Rearrangement, Horner-Wadsworth-Emmons Reaction
2. Curtius Rearrangement, Dimethoxycarbene
3. Saegusa Reaction
4. Anionic Oxy-Cope Rearrangement, Carbonyl Ene Reaction
5. Azlactone, Azamethine Ylide?pyrole, Jones' Reagent

August 18, 2007 (060607) MV

1. Hofmann-Loffler-Freytag Reaction
2. Anionic Oxy-Cope Rearrangement, Grob Fragmentation
3. Hauser Annulation, Cheletropic Elimination
4. Corey-Chaykovsky Reaction, Tiffeneau-Demjanov Rearrangement, Norrish Type I Cleavage

August 11, 2007 (060207) JI

1. Fischer Carbene, Burgess Reagent
2. N-Isocyanoiminotriphenylphosphorane, Diazoketone
3. Ti-Mediated Allenylation, Krapcho Decarboxylation, Rh-Mediated [5 + 2] Cycloaddition
4. Divinylcyclopropane Rearrangement, Heck Reaction
5. Sm-mediated Reductive Cyclization, Electrophilic Copper Carbenoid

August 4, 2007 (053007) TN

1. Oxy-Anionic Cope Rearrangement
2. Pummerer Reaction, Ligand Exchange of Diaryl Sulfoxide
3. Nazarov Reaction, Schmidt Reaction
4. Azomethine Ylide, Nitrone
5. Barton Decarboxylative Radical Oxygenation

July 21, 2007 (050207) MB

1. RuO4 Oxidation of Benzene Ring
2. Beta-N-Nitroso Mediated Decarboxylation
3. Kumada Coupling, Takaya-Nozaki Hydroformylation, Takai Olefination
4. N,N¹-Sulfinylbisimidazole, Sulfanimine S-Oxide, Sulfoximide
5. Ene Reaction, Carbonyl-Ene Reaction

June 30, 2007 (022807) JI

1. Photo-labile Protecting Group
2. Heck Reaction, Photo-induced Sulfonamide Cleavage
3. Ferrier Rearrangement
4. Intramolecular Photo[2+2]cycloaddition, Dowd-Beckwith Ring Expansion
5. Sulfimidate

June 16, 2007 (020707) TN

1. Ritter Reaction
2. Krapcho Decarboxylation, Narasaka-Heck Cyclization
3. Johnson-Claisen Rearrangement, Allylsilane
4. [2+2] Photocycloaddition, Cyclobutyl Carbinyl Cation Rearrangement
5. Wolff Rearrangement, Cope Rearrangement

June 9, 2007 (011707) MB

1. Nitrene, Aziridinylimine
2. Ene Reaction, Vinylsilane
3. t-Butylhypochlorite
4. Henry Reaction, Nitrile Oxide
5. Imino Nitrile, Grob Fragmentation

May 26, 2007 (122606) MV

1. Hypervalent Iodine, Allene, Diels-Alder reaction
2. Dichlorocarbene, Furan
3. Amidine, Cyclobutene
4. Pyrazole
5. Knoevenagel Condensation, Corey-Chaykovsky Reaction

May 19, 2007 (121206) JI

1. Aza-Michael Addition
2. Thermal Retro-Ene Reaction, Ketene
3. Ene-Yne Metathesis, Ireland-Claisen Rearrangement, Hetro-Diels-Alder Reaction, polybutadiene
4. Sulfinamide, Sulfenic Acid (-SOH), Sulfinic Acid (-SO2H), Sulfonic Acid (-SO3H)
5. Benzvalene, Chlorosulfonyl Isocyanate

May 12, 2007 (120606) TN

1. Acetylenic Sila-Cope Rearrangement, Tamao-Fleming Oxidation
2. Propargylic Carbonates
3. Azomethine Imine
4. Ipso Substitution, Friedel-Crafts Reaction
5. Meisenheimer Rearrangement

May 5, 2007 (112206) SB

1. Vilsmeier Reagent, Quinoline
2. Mannich reaction, Ene Reaction
3. Wacker Oxidation
4. Hg(OAc)2
5. Eschenmoser Fragmentation, Ferrier Reaction

April 28, 2007 (111506) MB

1. Cyclooctatetraene, Thiourea
2. Photo [4+4] Cycloaddition
3. Vinylphosphonium Salt, Eschenmoser's Salt
4. Zirconocene, Peterson Olefination
5. C-H Activation, Dioxirane

April 14, 2007 (102506) MV

1. Aza-Achmatowicz Oxidative Rearrangement, Chiral Sulfinimide
2. Darzens Reaction, Oxazoline, Nitrone, Lithiated Oxirane
3. Dibromocarbene, Bicyclo[1,1,0]Butane, Ene Reaction
4. AuCl, Pyrylium Salt, Benzyne
5. Photo[2+2]Cycloaddition, DDQ, Pyridine

April 7, 2007 (101806) JI

1. Pyridine
2. Hypochlorite Oxidation, Quinoline
3. Indole, ß-lactam
4. Ene Reaction, Diimide
5. Na2WO4, Nitrone

March 31, 2007 (101106) TN

1. Nitroso Compound, Lithium Naphthalenide
2. Allene, Lanthanide Lewis Acid, Dithiane, Dess-Martin Periodinane
3. Diazomethane, Pyrazoline
4. Lawesson Reagent, Vilsmeier Reagent, Azirine
5. Nitrone, Staudinger Reaction, SmI2

March 24, 2007 (100406) SB

1. Disulfur Dichloride (S2Cl2), Appel Salt (1,2,3-thiadiazolium Salt)
2. [2+2]-Photocycloaddition, Comins' Reagent
3. Alkyne Insertion, Allyl Sulfonium Ylide Rearrangement
4. Benzocyclobutenol
5. Simmons-Smith Reaction, Chugaev Reaction, Barton-McCombie Reaction

March 17, 2007 (092706) MB

1. Rhenium(I)-Mediated C-H Activation, Isobenzofuran
2. Favorskii Rearrangement, Horner-Wadsworth-Emmons Reaction
3. Carbene, ortho-Quinoiminomethide
4. Pummerer Rearrangement, Isobenzofuran
5. Tetrazolopyridinium Salt, Pyridinium N-Arylimide

March 10, 2007 (091306) CG

1. Smiles Rearrangement
2. ortho-Quinoiminomethide
3. 2-Amidoacrolein, Heck Reaction
4. PCC
5. Tandem Michael-Aldol Reaction

March 3, 2007 (090606) MV

1. Bunte Salt, [1,2]-Wittig rearrangement
2. Anionic Oxy-Cope Rearrangment, Baeyer-Villiger Reaction
3. [2,3]-Wittig Rearrangement
4. Thio-Michael Addition, Cyclopropenone, Ketene, Thiirane
5. Kulinkovich Reaction, O2-Mediated Cyclopropyl Amine Oxidation

February 24, 2007 (080906) YK

1. Aza-Claisen Rearrangement
2. 1,2-Acyl Radical Migration, Baeyer-Villiger Oxidation
3. Simmons-Smith Reaction
4. Neber Rearrangement, Aziridine, Divinylcyclopropane Rearrangement
5. Benzyne

February 17, 2007 (080206) TN

1. Anionic Oxy-Cope Rearrangement
2. Pauson-Khand Reaction, Anionic Oxy-Cope Rearrangement
3. Ketene, Claisen Rearrangement
4. Cyclopropanation, Pinacol Rearrangement
5. Fleming-Tamao Oxidation, Thionocarbonate

February 10, 2007 (071906) SB

1. Staudinger Reaction, Mislow-Evans Rearrangement, Thiazine-S-oxide
2. Allene, Nitrone, Indole
3. sigma-allylpalladium, Pd-Mediated Retro-Allylation
4. Claisen Rearrengement
5. Vinylsulfone, Sultone

February 3, 2006 (071106) MB

1. Achmatowicz Reaction, Carbonyl Ylide
2. Furan, DMTSF [(Me)2SSMe]BF4
3. Sulfenic Acid Radical, Pummerer Oxidation
4. Chugaev Reaction, Ene Reaction, Hydroboration
5. Rhodium Carbenoid, Ritter Reaction

January 20, 2007 (072499) MV

1. Oxy-Michael addition, Nitrile Oxide
2. Iodosobenzene Diacetate, Grieco oxidation
3. Eschenmoser Fragmentation
4. Isonitrile, Imidazole
5. N-Aziridinylimine

January 13, 2007 (071799) JI

1. Mislow-Evens Rearrangement, Swern Oxidation
2. Vinylidene Carbene, Dieckmann Condensation
3. Vinyl Radical
4. Azomethine Ylide
5. CAN Oxidation of Nitronate, Nef Reaction

January 06, 2007 (080305) TN

1. Curtius Rearrangement, Isocyanate, Photo[2+2]Cycloaddition
2. Azomethine Ylide, Oxazole
3. Nitrile Oxide
4. Stauginger Reaction
5. Allenylsilanes, Peterson Reaction

December 15, 2006 (070399) MB

1. a-Keto Triflate
2. Oxazole, Claisen Rearrangement, Aza-Cope Rearrangement
3. Fischer Carbene, Ketene
4. Butadienylphosphonium Salt, Thiophene
5. Claisen Rearrangement

December 9, 2006 (062699) MV

1. N-Hydroxylpyridine-2-thionoe Carbamate
2. Xanthone
3. Prins Reaction, Pinacol Rearrangement
4. Sodium Thiosulfate (Na2S2O3), Bunte Salt, Thioketone, [1,2]-Wittig
Rearrangement
5. Benzyne

December 2, 2006 (061999) JI

1. Benzil-Benzylic Acid Rearrangement
2. Kulinkovich Reaction, FeCl3
3. Nitrile Oxide, Isothiocyanate
4. Oxy-ene Reaction, Prins Reaction
5. Pummerer Rearrangement, Pictet-Spengler Reaction

November 25, 2006 (061299) YK

1. Sulfone
2. Isoxazole, Beckmann Rearrangement, Neber Reaction
3. SAMP
4. Hofmann Degradation
5. Isothiazole

November 18, 2006 (052999) MB

1. Alkynylindane, Vinyliodonium Ylide, Michael-Carbene Insertion Reaction
2. Prins Reaction, Pinacol Rearrangement
3. Zirconabenzyne, Cp2Zr(Me)Cl
4. Brook Rearrangement
5. TosMIC, Pyrole

November 11, 2006 (052299) MV

1. Dienophenol Rearrangement
2. Azlactone, Münchnones
3. TMSI, deoxygenation of epoxide
4. Sulfur Radical Redox Reaction
5. Xanthate Ester, Mannich Reaction

November 4, 2006 (051599) JI

1. Pyrimidine
2. Vilsmeier Reagent
3. Electrocyclic Reaction
4. Ritter Reaction, Aza-Prins Reaction
5. Azirine, Staudinger Reaction, iminophosphorane, Pyridine

October 28, 2006 (050899) TN

1. Pyrazoles
2. Ugi Reaction
3. Cyclopropanation, Dibromocarbene
4. Pinacol Rearrangement
5. 1,4-Dioxenes, Diazo Transfer

October 21, 2006 (050199) YK

1. Homobullvalenone
2. Nitrite Ester, Oxime, Barton Reaction
3. Arylsilane, Tamao Oxidation
4. Robinson-Schöpf Reaction, Mannich Reaction
5. Furan, DMDO

October 14, 2006 (040399) MV

1. BF3-Mediated Fragmentation
2. Claisen Rearrangement
3. Cyclohexadienone Rearrangement, Oxalyl
4. Münchnones, Imidazole
5. Thorpe-Ziegler Reaction

October 7, 2006 (062806) JI

1. Dötz Reaction, Chromium Fischer Carbene
2. o-Xylylene Cycloaddition
3. Ene Reaction, Reductive Sulfonamidation
4. Azomethine Ylide, Meldrum¹s Acid
5. Thio-Claisen Rearrangement, Iodolactonization

September 30, 2006 (061406) TN

1. Ritter Reaction, Mercuric Nitrate
2. Clemmensen Reduction, Moriarty Oxidation, PhI(OAc)2
3. Diels-Alder Reaction, Paterno-Büchi Reaction
4. Cyanoesterification of Allenes, Carbocyanation Reaction
5. Ynolate, Dieckmann Condensation

September 23, 2006 (060606) MV

1. Tsuji-Trost Allylation
2. Sonogashira Coupling
3. Nitrone
4. Carborhodation, Vinylcyclopropanation
5. Heck Reaction

September 16, 2006 (052406) MB

1. Diazene, Diazo Compound
2. Hypervalent Iodine, Barton-McCombie Deoxygenation
3. Eschenmoser Fragmentation
4. PtCl2, Oxa-6pi Cyclization
5. Tamao Oxidation

September 9, 2006 (050906) JI

1. Birch Reduction, Iodolactonization
2. Azomethine Imine, Thiosemicarbazide
3. Isonitrile, Oxazole
4. Dichlorocarbene, Payne Rearrangement
5. Ramberg-Bäckland Reaction

September 2, 2006 (042606) TN

1. Shapiro Reaction
2. Vinylidenecyclopropane, Diphenyl Diselenide, Evans-Mislow Rearrangement
3. Chlorocyanoketene
4. Homologation, Isonitrile, Oxazole
5. Prins-Pinacol Reaction

August 26, 2006 (041806) MB

1. Fischer Carbene, Iosbenzofuran
2. Kulinkovich Reaction
3. Diazo Transfer, Rhodium Carbenoid, Carbonyl Ylide
4. Oxy-Cope, Intramolecular Prins Reaction
5. Hypervalent Iodine

August 19, 2006 (041206) JI

1. Dieckmann Condensation
2. Azomethine Ylide, Nitrone, Isoxazoline, Aziridine
3. [2+2] Photocyclization, Retro-Mannich Fragmentation
4. Oxime, N-hydroxyaziridinium, Nitrone
5. Silyloxy-Cope Rearrangement, Palladium-catalyzed Carbonylation

August 12, 2006 (040506) MV

1. Isoxazoline, SnCl2, Mo(CO)6
2. Tungsten-Containing Vinyl Azomethine Ylide
3. Tamura-Beckman Reagent for Ring Expansion
4. Vinylcyclopropane Rearrangement
5. Pd-Catalyzed [3,3]-Sigmatropic Rearrangement

August 5, 2006 (031406) TN

1. Kulinkovich Reaction
2. Pinacol Rearrangement
3. Meisenheimer Rearrangement
4. Polyene Cyclization
5. Kraus Oxidation

July 28, 2006 (030806)

July 22, 2006 (030106) MV

1. HgCl2
2. Photo[2+2]Cycloaddition
3. Intramolecular Radical Cyclization
4. Collman¹s Reagent, Nucleophilic Acyl-Iron Anion
5. Sulfur-Stabilized Carbene

July 15, 2006 (021506) MB

1. Sulfur Ylide, Corey-Chaykovsky Reaction
2. Heck Reaction
3. Oxetane
4. Anionic Oxy-Cope, Criegee Oxidation
5. Oxaquadricyclane Fragmentation

July 8, 2006 (012506) JI

1. Retro-Mannich Reaction, Stille Coupling, Eschenmoser's Salts
2. Retro-Brook Rearrangement
3. 6-Endo-Dig Cyclization
4. Pinacol Rearrangement, Rhodium Carbenoid
5. Claisen Rearrangement

July 1, 2006 (011806) TN

1. Nitroalkene Cycloaddition
2. Isoxazoles
3. Basketene
4. Au catalyst
5. Kraus Oxidation, Diazoketone

June 24, 2006 (011006) TC

1. Cyclopropenone Ketal, Tropolone
2. [1,8]-Bis(diphenylmethylium)naphthalenediyl
3. Fujimoto-Belleau Reaction, Benzazipine
4. Criegee Rearrangement
5. Amino Nitrile, Mannich Reactions

June 17, 2006 (122105) MV

1. Prins-Pinacol Rearrangement, Photolytic Deformylation
2. Michael-Mannich Reaction Cascade
3. Silacyclopropane, Silylene
4. Krapcho Reaction, [5+2] cycloaddition, Petasis Olefination
5. Thorpe-Ziegler Reaction

June 10, 2006 (121405) MB

1. Oxy-Cope, Oxy-Ene Reaction
2. Acid-Catalyzed Trans-Annulation
3. Petersen Olefination, Tamao Oxidation
4. Carbonyl Ylide
5. Nitrone

June 3, 2006 (112205) JI

1. ROM, RCM, Grubbs Catalyst
2. Pauson-Khand Reaction
3. Solvolysis, Allylic Bromination
4. Ketenium Cation, Kowalski Protocol
5. Azirine, Pyridine Synthesis

May 27, 2006 (111506) TN

1. Isobenzopyrylium Cation
2. Oxazole
3. Acylium Ion
4. Di(isopropylprenyl)borane
5. Nitrosobenzene

May 20, 2006 (110805) TC

1. 2-Pyridone
2. Nitrile Imine (1,3-dipole), pyrazoline
3. Thiophene
4. Pyrylium, Nitrilium Ion, Oxazoline
5. Diazene

May 17, 2006 (060805) PZ

1. Oxadi-pai-methane Rearrangement
2. Thioisomünchnone (1,3-thiazolium-4-olate)
3. Oxallyl, Favorskii Rearrengement
4. Bargellini Reaction
5. Pd(IV), Norbornene

May 13, 2006 (110205) MB

1. N-sulfinylcarbamate, Mislow-Evans Rearrangement, Sulfer Diimide
2. Acyl Radical, Azide Transfer
3. Fischer Carbene
4. Hydrosilylation, Peterson Olefination
5. Rhodium carbenoid, Cyclopropanation

May 6, 2006 (102506) MV

1. Ene Reaction
2. Benzoin Condensation
3. Brooke Rearrangement
4. Barton-Kellogg Olefination
5. Homoenolate, Barton Deoxygenation

April 29, 2006 (101805) JI

1. Evans-Mislow Rearrangement
2. McEwen Procedure (phosphonium salts to ketone), Alkylidene Carbene
3. Oxidopyrylium, a-Ketol Rearrangement
4. Bischler-Napieralski Reaction
5. Truce-Smiles Rearrangment

April 22, 2006 (100405) TN

1. Ketene, Oxy-Cope Rearrangement
2. Retro-Mannich Fragmentation, Picoline, Wilkinson's Catalyst
3. Cationic Alkyne Cyclization
4. Bartoli Indole Synthesis, Nitorso Compound
5. Iodination of Hydrocarbons

April 15, 2006 (092105) TC

1. Thiazole, Azomethinie Ylide
2. Diazotization, Claisen Rearrangement
3. N-Sulfinylurea Evans-Mislow Rearrangement
4. Ugi Reaction, Petasis Condensation
5. [1,5]-Hydride Shift, Claisen Rearrangement

April 8, 2006 (091405) MB

1. Hypervalent Iodine, Fetizon Oxidation
2. Allylic Oxidation, Baeyer-Villiger Oxidation
3. Allenecarboxylate, Vinylcyclobutanol
4. Curtius Rearrangement
5. Aziridinylimine, Claisen Rearrangement

April 1, 2006 (090705) YK

1. Oxidopyridinium ylide, Achmatowicz Reaction
2. Pyrazinone
3. Fischer Carbene, Electrocyclic Reaction
4. Baylis-Hillman Reaction, Isobenzofuran
5. N-chloroimidate, Neber Rerrangement

March 25, 2006 (080105) JI

1. Thioamide, Carbon Suboxide (O=C=C=C=O), Carbonyl Sulfide (O=C=S)
2. Rawal's Diene, Oxidative Decarboxylation
3. Aza-Cope Rearrangement, Fischer Carbene
4. Olefin Metathesis
5. Ugi Reaction, Olefin Metathesis

March 11, 2006 (072705) TC

1. Eschenmoser-Grob Fragmentation
2. Allylic Xanthate
3. Ynone
4. Claisen Rearrangement, Vinyl Ether
5. Blaise Reaction

March 4, 2006 (071305) MB

1. Wagner-Meerwein Rearrangement, Grob Fragmentation
2. Oxallyl
3. Stang Reagent[PhI(CN)OTf]
4. Cope Elimination
5. Vinyl Migration

February 25, 2006 (070605) MV

1. Iodolactonization
2. Mukaiyama Michael Addition, Baeyer-Villiger Oxidation
3. Horner-Wadsworth-Emmons Reaction
4. Knoevenagel Condensation, Corey-Chaykovsky Reagent
5. Methyleneaziridine

February 18, 2006 (062205) JI

1. Wagner-Meerwein Rearrangement, Meinwald Rearrangement
2. Kulinkovich Reaction, Zimmerman-Traxler Transition State
3. Ozonolysis, Criegee Fragmentation
4. Divinyl Cyclopropane, Vilsmeier¹s Reagent
5. Simmons-Smith-Type Reaction

February 11, 2006 (061405) TN

1. Nicholas Reaction, Corey-Fuchs Reaction
2. Pummerer Rearrangement
3. Cyclopropyl Ketone
4. Sonogashira Coupling, Heck Reaction
5. Kumada Cross Coupling

January 28, 2006 (060105) MB

1. Peterson Olefination
2. Achmatowicz Reaction
3. Pb(OAc)4
4. Nitrone, Oxaziridine, Amide
5. de Mayo Reaction

January 21, 2006 ((051805) MV

1. Diazo Transfer, N-Ylide
2. Staudinger Reaction, Ketenimine, Claisen Rearrangement
3. Oxazole, Isonitrile
4. Ruthenium vinylidene, 6-Endo-dig Electrocyclization
5. PhI(OAc)2, Orthoquinone

January 14, 2006 (051105) JI

1. Nazarov Reaction, Oxallyl, Dichloroketene
2. Carroll Rearrangement, Acylketene
3. Favorskii Rearrangement, (S)-Carvone
4. Ruthenium Carbene, Divinylcyclopropane Rearrangement
5. Benzyne, TMS-Ynolate, [2 + 2] Cycloaddition

January 7, 2006 (042605) TN

1. Homoallylic Radical Rearrangement
2. Brook Rearrangement, [2,3]-Wittig Rearrangement
3. Claisen Rearrangement
4. Mukaiyama Aldol Reaction
5. Thienothiopyranthiones

December 17, 2005 (041205) TC

1. Conia Reaction, SeO2 Oxidation
2. Allene
3. Shapiro Reaction, Electrocyclic Reaction
4. Tetronic Acid, Keteneylidenetriphenylphosporane
5. Pauson-Khand Reaction

December 10, 2005 (040605) MB

1. Radical Brooke Rearrangement
2. Rhodium Carbenoid, Carbonyl Ylide
3. Nitrile oxide, Isoxazoline
4. Pyrrolo[2,1-b]thiazole
5. Sulfur Dioxide, Sulfur Diimide

December 3, 2005 (032305) MV

1. Julia Olefination
2. PtCl2
3. Mislow-Evans Reaction, Pauson-Khand Reaction
4. Divinyl-cyclopropane Rearrangement, Ireland-Claisen rearrangement
5. Pinacol Rearrangement

November 26, 2005 (031605) JI

1. Benzyne, 1-Aminotriazole, 4-Phenyloxazole
2. Carbonyl Ylide
3. Cope Rearrangement
4. Curtius Rearrangment, Hofmann Degradation
5. Oxazole, TosMIC

November 19, 2005 (030805) TN

1. Fischer Carbene
2. Povarov Reaction, Aza Diels-Alder reaction
3. Cyclopropylphosphonium Salt
4. Oxadiazole
5. Wagner-Meerwein Rearrangement

November 12, 2005 (030205) TC

1. Brooke Rearrangement
2. Mannich Reaction
3. Imidyl Chloride
4. Dihydroalkoxylation, Alkynone
5. Sulfur Ylide

November 5, 2005 (022305) MB

1. Bicycloprppylidene, Kulinkovich Reaction
2. Rhodium Carbenoid, S-Ylide
3. Dimethyl Phosphite, Azirine, Nitroso Compound
4. Aza-Cope/Mannich Reaction
5. Sulfone

October 29, 2005 (112404) MV

1. Bullvalene
2. Paterno-Buchi Reaction
3. Thiourea, Ortho-Quinodimethane
4. Crisscross Annulation
5. Stang Reagent [PhI(CN)OTf]

October 22, 2005 (020105) JI

1. Mitsunobu Reaction, MT-sulfone
2. Pulegone
3. Grob Fragmentation, Oxyallyl Zwitterion, 4-Pyrone
4. Vitamin B12, Eschenmoser Sulfide Contraction
5. 1,2,3-Thiadiazole

October 15, 2005 (011905) TN

1. Thioamide
2. Benzyne
3. Ene Reaction
4. Ritter Reaction
5. Ozonolysis

October 8, 2005 (011105) TC

1. Polonovski-Potier Reaction
2. Oxime, Nitrile
3. Fischer Carbene, Cr(CO)5(thf)
4. Azirine, Ketenimine
5. Photolysis

October 1, 2005 (121504) MB

1. Oxazolidine, Toluenesulfinate
2. PtCl2
3. Vilsmeier Reagent, Vinamidinium Salt
4. SnCl4
5. a-Chloroketimine

September 24, 2005 (120704) MV

1. Darzens Reaction, Homologation
2. Friedel-Crafts Reaction, Indene, Methylenecyclopropane
3. Knoevenagel Condensation
4. Dakin-West Reaction, Azlactone, Oxazole, Vilsmeier Reagent
5. Evans-Tishchenko Reaction, Reformatsky Reaction

September 17, 2005 (111604) MB

1. Silylformylation, Tamao Oxidation
2. Carbodiimide, Cyanamide
3. Mislow-Evans Rearrangement
4. Mander Reagent, Triazole, Prins-Pinacol Rearrangement, Aza-Cope-Mannich Reaction
5. Oxy-Michael Addition

September 10, 2005 (110904) TC

1. Nitrene, Azulactone
2. CrO3
3. Aza-Diels-Alder Reaction
4. Ketene, Allene
5. Birch Reduction

September 3, 2005 (110904) MV

1. Stevens Rearrangement, Tamao Oxidation
2. Thiazolinium Salt
3. Pummerer Rearrangement, Carbonyl Ylide
4. N-aziridinylimine
5. Acylium Cation, Carbonyl Ylide

August 27, 2005 (102004) JI

1. Favorskii Rearrangement, Oxy-Ene Reaction
2. Low-Valent Zirconium, Cp2ZrCl2, Petersen Olefination
3. Nitrone
4. PhI(OAc)2, Barton Decarboxylation
5. Schmidt Reaction, Pinacol Rearrangement, Mitsunobu Reaction

August 20, 2005 (100604) TC

1. Dieckmann Condensation, Kulinkovich Cyclopropanation
2. Rhodium Acetate, Meerwein Salt
3. Brook Rearrangement
4. Lawesson’s Reagent, Nitrilium Cation, Bischler-Napieralski Reaction, Isonitrile
5. Claisen Rearrangement, Ene Reaction

August 13, 2005 (092904) MV

1. SmI2
2. Dimerization of Wittig Reagent with O2
3. Cupric Bromide (CuBr2), Cuprous Bromide (CuBr)
4. Singlet Oxygen
5. Thiazoline, 5-Endo-Dig

August 6, 2005 (090704) JI

1. Nitrone
2. Pinacol Rearrangement, SmI2
3. Dimethoxycarbene, Cheletropic Reaction
4. Aziridene, Oxazole, Oxazolidinone
5. Oxy-Cope Rearrangement, Ketene, [2 + 2] Cycloaddition

July 30, 2005 (082504) TC

1. Vinyl Carbene
2. Allene, Enamide
3. Carbonyl Ylide, Fischer Carbene
4. Photochemical [1,5]-Sigmatropic Rearrangement
5. Ni-Coupling Reaction

July 23, 2005 (081104) TN

1. Tosyl Cyanide
2. Sulfur Ylide
3. Favorskii Reaction
4. Dichloroketene, Vinyl Sulfoxide, Dötz Reaction, Fischer Carbene

July 16, 2005 (080405) JI

1. Neber Reaction, Azirine, Pyrimidine
2. Sulfoxide Elimination
3. Stille Coupling
4. Barton-McCombie Deoxygenation, Vinylnitro Compound
5. Vinyl Phosphonium Salts, Allene

July 9, 2005 (072804) TC

1. Luche Reagent
2. Nitrone, Allene
3. Brown¹s Ketone Synthesis
4. Peterson Olefination
5. 1,2-Alkylmigration

July 2, 2005 (071304) MV

1. Nitrone, Azomethine Ylide
2. Baeyer-Villiger Oxidation
3. Robinson Annulation, Horner-Wadsworth-Emmons Reaction, Favorskii Reaction
4. [1,2]-Acyl Shift, Nitroso Compound
5. Meldrum¹s Acid, Hydroxamic Acid

June 25, 2005 (063004) ML

1. Electrocyclic Reaction, Shapiro Reaction
2. Pictet-Spengler Reaction
3. Sommelet-Hauser Rearrangement
4. Oxazoline
5. Meisenheimer Rearrangement, Bartoli Indole Synthesis

June 18, 2005 (062304) TC

1. Sulfoxide
2. Pinacol Rearrangement
3. Thioaldehyde, Rh Carbenoid, Sulfur Ylide
4. Cheletropic Rearrengement, Staudinger Reaction
5. Xanthene, Azepine

June 11, 2005 (060904) MV

1. Staudinger Reaction
2. Acyloin Condensation, Amadori Rearrengement, Prins Reaction, Pinacol Rearrangement
3. Favorskii Reaction
4. Furan Diels-Alder Reaction
5. Dichloroketene

June 4, 2005 (060104) JI

1. Oxadiazoline, Cyclopropenone Acetal, Vinyl Carbene
2. Oxy-Cope Rearrangement, Hypervalent Iodine
3. Azomethine Ylide
4. Haller-Bauer Reaction
5. Nef Reaction, Clemmensen Reduction

May 28, 2005 (051904) TC

1. Pinacol Rearrangement
2. Ugi Reaction
3. Nitrone
4. Sulfur Ylide
5. Ketene, Wolf Rearrangement

May 21, 2005 (051104) MV

1. Allylsilane
2. Sulfur Ylide, Birch Reduction, Benzyne
3. a-Chloroboronate
4. Wagner-Meerwin Rearrangement, Nametkin Rearrangement
5. Oxycyclopropyl Radical

May 14, 2005 (042104) JI

1. Anthranilic Acid, Benzyne
2. [2,3]-Wittig Rearrangement
3. Corey-Chaykovsky Reaction, Divinylcyclopropane Rearrangement
4. Tamao Oxidation, Meerwein Arylation
5. Weinreb's Sulfur Diimide

May 7, 2005 (041305) TC

1. Oxy-Cope Rearrangement,
2. Thermodynamic Enolether (TMSI/HMDS)
3. Baylis-Hillman
4. Allylphosphonium Salt
5. Xanthate, Chugaev Reaction, Barton-McCombie Reaction

April 30, 2005 (040704) MV

1. Staudinger Reaction
2. Imidate, Thiazoline, Nitrilium Ion
3. Barton-Zard Reaction
4. Krapcho Decarboxylation
5. Hydroboration

April 23, 2005 (032404) JI

1. Pinacol Rearrangement, Retro-Oxy-Ene Reaction
2. Allene Equivalent
3. Diacetyl (MeCO)2, Propellane, Allene
4. Thiopyrone
5. Pummerer Rearrangement

April 16, 2005 (031004) TC

1. Mn(OAc)3, Regitz Diazo Transfer
2. Nitrone
3. Heck Reaction, Pd(IV) with Ag+
4. Schmidt Reaction
5. Nitrene, Azirine

April 9, 2005 (030304) MV

1. Cyanohydrin, SnCl2
2. Reduction of Sulfoxide, Thiocarbonyl Oxide
3. Sulfone, Furan
4. Benzidine Rearrangement
5. Vilsmeier Reagent, Pictet-Spengler Reaction, Bischler-Napieralski Reaction

April 2, 2005 (070704) JI

1. Isocyanate, Imide
2. Thorpe Reaction
3. Eschenmoser Reagent
4. Isonitrile, Hexamethyldistannane
5. Fischer Carbene, C-H Insertion

March, 26 2005 (102401) TC

1. Photo-Deprotection of Acetonide
2. Azomethine Ylide
3. Radical Mediated Conversion of Hyrdoxamic Acid to O-acylhydroxylamine
4. Ireland-Claisen Rearrangement, Dehydration of Carboxamide to Nitrile
5. Azulactone

March 19, 2005 (021804) MV

1. Ruthenium Catalyst
2. Curtius Rearrangement, Fischer Indole Synthesis, DPPA
3. Eschenmoser Fragmentation, Lithium-Sulfur Exchange
4. Wacker Oxidation, Nazarov Cyclization
5. Disulfide

March 12, 2005 (012104) JI

1. Azomethine Ylide
2. Neber Reaction, Azirine, Ketenimine
3. Wolff Rearrangement, Ketene, Diazirine
4. Nef Reaction, Nitronate, Triton B
5. Ozonolysis, Carbonyl Ylide

March 5, 2005 (082901) TC

1. Phenylselenyl Chloride, Selenoxide Elimination
2. Acylium Cation, Sulfolene Dioxide, Cheletropic Reaction, Masked 1,3-Diene
3. Selenoaldehyde, (Me2Al)2Se
4. Eestwood Method, Corey-Winter Olefin Synthesis
5. Acyl Radical, NOCl (Nitrosyl Chloride)

February 26, 2005 (010704) MV

1. p-allyl Palladium Complex
2. SmI2
3. Carbonyl Ylide, Achmatowicz Reaction
4. Brook Rearrangement
5. Mitsunobu Reaction, Amadori Rearrangement

February 19, 2005 (121703) JI

1. Evans-Mislow Reaction
2. Meerwein-Ponndorf-Verley Reduction, de Mayo Reaction, Grob Fragmentation
3. Carbonylation
4. Low-Valent Titanium Reagent
5. AIBN

February 12, 2005 (120303) MV

1. Wolff Rearrangement, Diazotransfer
2. Favorskii Rearrangement, Thiirane, Cheletropic Reaction, Barton Olefin Synthesis
3. Arbuzov Reaction, Fukuyama Reduction
4. Cheletropic Reaction, Diethyl Azodicarboxylate (DEAD)
5. von Richter Reaction, Chugaev Reaction, Barton-McCombie Reaction

February, 5th 2005 (082901) TC

1. Sarcosine
2. Palladium (II) Iodide
3. Benzyne, TMSI
4. Nitroso compound
5. Dialkoxycarbene

January 29, 2005 (082201) JI

1. Acyl Radical, Ketenimine, Nitrilium Cation
2. p-Allyl Palladium Complex
3. Diazotization
4. Photo-Induced [2+2] Cycloaddition, Oxetane
5. Azomethine Ylide, Oxazoline, Oxone

January 22, 2005 (092601) TC

1. Staudinger Reaction, Aziridinium Cation
2. Azomethane Ylide, Oxazole
3. Staudinger Reaction, Ketenimine
4. LiDBB, Eu(fod)3, Oxetane, Photo[2+2]cycloaddition
5. Pyridine N-Oxide, [3,3]-Sigmatropic Rearrangement

January 15, 2005 (091901) MV

1. Photoactivation of Nitro Group
2. Transannular Aldol, Squaric Acid, Cyclobutene, 8pi-Electrocyclization
3. Hetero Diels-Alder Reaction, Nitrone
4. Allylphosphonium Salt
5. PhI(OAc)2

January 8, 2005 (091201) JI

1. Alkoxyallene, Nazarov Reaction
2. Tiffeneau-Demjanov Rearrangement, Favorskii Rearrangement
3. Baeyer-Villiger Reaction
4. Hypervalent Iodine
5. 3,3-Sigmatropic Rearrangement

December 18, 2004 (090501) TC

1. Krapcho Decarboxylation, [2+5] Cycloaddition
2. Hydride Elimination
3. LTA, Acyl Radical
4. Cyclopropanation, Spiro Center
5. Ynolate, Beta-Lactone Enolate

December 11, 2004 (103101) MV

1. HOBt, DCC, Sodium Bisulfite Adduct of Aldehyde
2. Diazoketoester, Diazo Transfer
3. Thionyl Chloride
4. Prins Reaction
5. Low-valent Zirconium

November 20, 2004 (101701) MV

1. Staudinger Reaction, Triazole, Photolysis
2. Brook Rearrangement, Oxy-Cope Rearrangement, Divinylcyclopropane
3. Nitrile Oxide, Azirine, Neber Rearrangement
4. Pinacol Rearrangement
5. Samarium(II) Iodide

November 13, 2004 (101001) JI

1. Nef Reaction, Nitronate, Nitroso Compound
2. Tamao Oxidation
3. Michael Reaction, Mannich Reaction
4. Sulfanimine S-Oxide (R-N=S=O), Mislow-Evans Rearrangement
5. Pinacol Rearrangement

November 6, 2004 (100301) TC

1. Gassman Indole Synthesis
2. Tris(dimethylamino)methane [HC(NMe2)3]
3. Clasien Rearrangement, Bergman Cyclization
4. Retro-6p Cyclization
5. Meewein-Ponndorf-Verley Reduction

October 30, 2004 (112801) CG

1. Sulfenyl Chloride (RSCl); Sulfone
2. Nitrone; Amide Hydrolysis; Cobyrinic Acid
3. Diazoketone; Rhodium Carbenoid; Sulfur Ylide; Thione
4. Selenium Dioxide; Allylic Oxidation
5. Domino Michael Addition

October 23, 2004 (112101) JI

1. Benzocyclobutene, Orthoquinodimethane
2. Mitsunobu Reaction, Nitrone, Isoxazolidine
3. Cope Rearrangement, Cyclobutene
4. Curtius Rearrangement, Isocyanate, Nitrene
5. Retro-Ene Reaction, Retro-Oxy-Ene Reaction

October 16, 2004 (110701) EO

1. Sulfur Diimide, Ene Reaction, [2,3]-Sigmatropic rearrangement
2. Taxol
3. Meerwein Arylation
4. a-Stannyl Sulfone
5. O-Acetyl Hydroxylamine

October 9, 2004 (121901) CG

1. Nitrone
2. BINOL
3. Diazonium Salt
4. Azomethine Ylide, Meldrum's Acid
5. Ugi Reaction

October 2, 2004 (030602) SB

1. TBSOTf, Weinreb Amide
2. Nitrilium Cation
3. Fisher Carbene
4. Nitrone
5. S-Ylide, Allenyl Carbene, [2,3]-Sigmatropic rearrangement

September 25, 2004 (050802) EO

1. Nitro-Mannich Reaction, Dichlorocarbene
2. (TMS)3SiH
3. Reissert Compound
4. [1,2]-Wittig and [2,3]-Wittig Rearrangement
5. Pyrazoline

September 18, 2004 (121201) CG

1. Baylis-Hilman Reaction
2. Cyanamide; Claisen Rearrangment; 6p-Electrocyclization
3. Til4
4. Retro-Mannich Reaction
5. Tristrimethylsilane

September 11, 2004 (120501) SB

1. Oxime Deprotection
2. Dimethylacetylenedicarboxylate
3. C-H Activation by Pd
4. 1,3-Dipolar Cycloaddition, 3,3-Sigmatropic Rearrangement
5. Pummerer-type Oxidation

August 21, 2004 (011602) SB

1. Birch Reduction, Me4NBH(OAc)3
2. SmI2, Pinacol Rearrangement, Tishchenko Reaction
3. Hetero Diels-Alder Reaction, Acylnitroso Compound
4. Oxone, Oxaziridinium Epoxidation, cf. Davis
5. Fischer Carbene, Dotz Reaction

August 14, 2004 (010902) EO

1. Oxy-Cope Reaction, Transannular Michael Addition
2. 2-Amidoacrolein
3. CrCl2
4. Aziridinylimine
5. Curtius Rearrangement

August 7, 2004 (022702) OB

1. Pb(OAc)4, Tl(NO3)3
2. Aza-Ene Reaction
3. Bergman Cyclization
4. Tamao Oxidation
5. NO2 (N2O4)

July 17, 2004 (022002) CG

1. Epichlorohydrin
2. Eschenmoser Sulfur Contraction Reaction
3. Amidine, Azomethine Ylide
4. Johnson-Claisen Rearrangment, Ketene Acetal, Oxazolidinone
5. Pinnacol-Type Rearrangment

July 10, 2004 (021302) SB

1) Mislow-Evans Rearrangement
2) Meinwald Rearrangement, Divinyl cyclopropane Rearrangement
3) Pinacol Rearrangement, Trans Reduction of Propargyl Alcohol
4) Fisher Carbene (Cr, Mo, W) cf. Schrock Carbene
5) Birch Reduction

June 26, 2004 (032002) EO

1. Titanocene-Benzyne Complex
2. Diazo Compound
3. Nitrene, Isoxazole
4. FeCl3-Mediated Cyclopropane Opening
5. CuCl Mediated Radical Reaction

June 12, 2004 (041702) SB

1. Selenadiazole
2. Ireland-Claisen Rearrangement, Fluorosilicic Acid
3. Ag+ Dehalogenation
4. Diphenyldisulfide
5. Evans-Mislow Rearrangement, Cationinc Aza-Cope Rearrangement

June 5th, 2004 (041002) EO

1. Pictet-Spengler Reaction, Isoquinoline
2. Wagner-Meerwein Rearrangement
3. Horner-Wadsworth-Emmons Reagent
4. Azetidine
5. McMurray Coupling

May 29, 2004 (040302) CG

1. Acylium Ion
2. Amidine
3. Cyclopropene Acetal
4. Grob Rearrangment
5. Ene Reaction, Brook Rearrangement, Saegusa Oxidation

May 22 (052202) SB

1. 1,3-Dipolar Cycloaddition, Diaminoketene Formation
2. Davis' Oxaziridine, Brook Rearrangement
3. Photochemical [2+2] Cycloaddition, Pinacol-type Rearrangment
4. Iodobenzene Diacetate
5. Photochemical [2+2] Cycloaddition, 6 p Electrocyclization

May 15 (051502) EO

1. Reverse-Electron Demand Diels-Alder
2. Schmidt-type Rearrangement
3. Retro-Mannich
4. Oxazole formation, N-C Acyl Migration
5. Alkylidene Carbene Insertion

May 1 (050102) SB

1. Vinyl Cyclopropenyl Rearrangement
2. Azomethine Ylide
3. Sulfinic Acid
4. Isoamyl Nitrite, Wolff Rearrangement
5. Benzotriazole

Apr. 24, 2004 (061902) EO

1. Nitrile Oxide, Nitro Compound/Isocyanate, Oxime/NBS
2. Isocyanide, Zircocene Dichloride
3. Triphosgene
4. Photo [2+2] Cyclization
5. Diketene Acetone Adduct, Photochemical Ring Contraction

Apr. 17 (061202) CG

1. Rhodium Carbenoid, Azomethine Ylide, c.f. Eschenmoser Sulfur Contraction
2. Kowalski Ynolate Protocol, Wolff Rearrangement, [2+2]-Cycloaddition, c.f. Corey-Fuchs Reaction
3. Aminonitrile
4. Copper Carbenoid, (Azomethine Ylide), Dieckmann Reaction
5. Finkelstein Reaction, Iminothiocarbonyl Ylide, Thiirane

Apr. 10 (060502) SB

1. Paulson Khand-Type Reaction, Transannular Aldol Reaction
2. Nicholas Reaction
3. Dewar Benzene
4. Aziridine, Oppenauer Oxidation
5. Ketene Formation, [2+2] Cycloaddition

Apr. 3, 2004 (073102) EO

Mar 19, 2004 (071702) CG

1. Tetrasubstituted Olefin, Dialkylated Malonate
2. Azide Reduction, c.f. Staudinger Reaction, Retro-Mannich
3. Fisher Carbene, Divinyl Cyclopropane Rearrangement
4. Phosphorous Enediolate, Carbon to Sulfur Acyl Migration, Episulfide, Eschenmoser-type Sulfide Contractions of Thiolactams
5. Thiophene

Mar 12, 2004 (070302) SB

1. 4-Phenyl Oxazole, Furan
2. Achmatowicz Reaction
3. Imino Ketene, Silyl Migration
4. Schlenk Equilibrium, Pinacol-Type Migration
5. Isonitrile, Staudinger Reagent, Diazo Compound

Mar 5, 2004 (082102) EO

1. Thiirenium ion, S-ylide, tetraphenylporphyrin
2. Fischer Carbine, Isobenzofuran
3. [2+2]-Photocycloaddition
4. Skattebol Rearrangement, Dibromocarbene, Allene, Fulvene
5. None

Feb. 28, 2004 (092502) CG

1. Diazomethane, Selenoxide, Tiffaneau-Demernov Reaction
2. Sulfone Formation
3. Acylium Ion, Vinylphosphonium Salt
4. Allyl Alcohol Epoxidation, VO(acac)2
5. Singlet Oxygen, Oxazole, Triamide

Feb. 21, 2004 (091802) SB

1. Brook Rearrangement, Tamao Oxidation, O,S-Acetal Formation
2. Enol Phosphate
3. Lawesson's Reagent, Fisher Carbene, Ketene
4. Calcium Hypochlorite
5. Neber-Type Cyclization, Azirine

Feb. 14, 2004 (090402) EO

1. Thiadiazoline, Thiocarbonyl Ylide, Thiirane
2. Mo.O5 / HMPA / LDA
3. PhP(TMS)2
4. Rh Cabenoid, S-Ylide
5. Oxaziridene, Aminobenzotriazole

Feb. 7, 2004 (103002) CG

1. Iodobenzene Diacetate; Trimethylorthoformate
2. Ley’s TPAP Oxidation; Vinyl Carbene
3. Upjohn Method; Cyclic Sulfate; DBU
4. Tamao Oxidation
5. Aza-Claisen Rearrangement

Jan 31, 2004 (102302) SB

1. Rhodium Carbenoid, Cyclopropanation, Acyl Diazo Compound
2. Epoxide Opening Reaction, Staudinger Reaction, Vinyl Sulfone, Aziridine Formation
3. Homo Diels-Alder [2+2+2] Cycloaddition, Oxymercuration, Markovnikov Addition
4. Ozonolysis Workup (Corey-Schreiber Method), SET Reduction by SmI2
5. LTA Oxidation of Amine

Jan 24, 2004 (101602) EO

1. Diazonium salt, Tetrazole, 1,3-Dipolar Cycloaddition, Azomethine Imine
2. Benzyne, Diazotransfer, Wolf rearrangement, Ketene, a-Diazoketone, Ynolate
3. Hetero Diels-Alder Reaction
4. Cheletropic Reaction, Dimethoxycarbene, Hetero Diels-Alder Reaction, Meerwein's Salt
5. Fisher Carbene

Jan 16, 2004 (100202) CG

1. Prins-Pinacol Rearrangement
2. Bergmann-Type Cyclization, Decarboxylation
3. Michael Addition of Triphenylphosphine
4. Ziese’s Reagent, Platinum Insertion Into a Cyclopropane Ring, Reductive Elimination
5. Favorskii-Type Rearrangement, Nitrogen Heterocycle

Jan 9, 2004 (122502) SB

1. Trimethyl(tributylstannyl)silane
2. Azide Substitution, Curtius-type Rearrangement
3. Sommlet-Hauser Rearrangement
4. Amadori Rearrangement
5. Tris(trimethylsilyl)silane

Dec. 13, 2003 (121802) CG

1. Silylketones, Oxyallylic Cation, Wolff Rearrangement
2. Dotz Reaction, Fisher Carbene, Isonitrile, Cyclobutenedione
3. Allyl Sulfone, Bartoli Indole Synthesis, Nitroso Compound
4. Hetero-Heck Type Reaction, Oxidative Addition of Pd(0) to Chloroamines, Aziridinium cation
5. Aziridinium cation, Cu(1) Promoted Nitrogen Radical Cation Cyclization

Dec 5, 2003 (120402) SB

1. MeSSMe2+ BF4-
2. Diphenyl Disulfide
3. Tungsten
4. Mercuric Chloride
5. Prins-Type Reaction

Nov 21, (012203) CG

1. Alkynyl Borate, MOM Group Rearrangement, Formaldehyde, Alkynyl Borane
2. Carbopalladium of Olefin, Cyclopropylcarbinyl-Homoallyl Rearrangment
3. Oxazole, Intramolecular Diels-Alder, Retro Diels-Alder reaction, Nitrile Group, Isonitrile, Nitrilium Cation
4. DDQ Oxidation, Quinoline, Hydroquinone
5. Staig’s Rearrangement

Nov 14, 2003 (011503) SB

1. Endoperoxide, Hoffman Elimination, o-Alkylhydroxylammonium Salt.
2. Bucherer Reaction, b-napthol, Sulfite Adduct of Aldehyde, Michael Reaction of Sulfite.
3. Reduction of disulfide.
4. Nitrilium ion, Michael Addition of Isonitrile, [3,3] Sigmatropic Rearrangement.
5. Reduction of Nitro Group with SnCl2, Pinacol-Type Rearrangement.

Nov 7, 2003 (100802) CG

1. a-Carbonyl Nitro Compound, Nitril Oxide, c.f. PhCNO, Et3N from Nitro Compound
2. b-Amino-a,a-Unsaturated Carbonyl Compound, Vinyl Acetate
3. Fisher Indole Synthesis, Cyanamide, c.f. von Braun, Carbodiimide, Iminoketene
4. Iodolactonization
5. Retro-Michael Reaction, Hydroxylation by Oxygen

Oct 31, 2003 (021203) YK

1. Lawesson’s Reagent and Nitro Group
2. Enolacetate, Nitrilium Ion, Diels-Adler Reaction
3. DPPA, Formation of Pyrrolidine, Alkylborane and Azide
4. 1,4-Endoperoxide
5. Abnormal Claisen Rearrangement, Hypervalent Iodinane

Oct 24, 2003 (021203) SB

1. Photorearrangement of cyclohexadienone
2. mCPBA Oxidation of Sulfide, [2,3] Sigmatropic Rearrangement.
3. Reaction of Fischer Carbene with Alkyne, Intramolecular Diels-Alder
4. Beckmann Rearrangement, Chapman Rearrangement (o-aryliminoether to amide)
5. Iodoalkoxylation of Olefin, Radical Fragmentation.

Oct 17, 2003 (031203) CG

1. Vilsmeier Reagent, Iminoketene, Azirene
2. Zirconium Oxidation of a-Position of Phenol, Claisen Rearrangment
3. [3,3]-Sigmatropic Rearrangement, Ireland-Claisen Rearrangement
4. Bromolactonization, Ag-Mediated Halide Abstraction / Carbocation Rearrangement, Stabilization of b-Cation by Silane
5. Nitrone [2+3] Cycloaddition, Pinnacol-Type Rearrangment with Cyclopropyl Alcohol,

Oct 10, 2003 (030503) YK

1. Lithiation of Furan C-glycosidation
2. Diazo Compound (Regitz Diazo Transfer: TsN3, Et3N, MeCN) Rhodium Carbenoid Transfer by Alkyne
3. Reaction of Fischer Carbene with Alkyne, Divinyl-Cyclopropane Rearrangement, 6p Electrocycloc Reaction
4. Nitrile Oxide (Form Nitroalkyne With 2-Methoxypropene)
5. Generation of Carbene by b-Elimination, Lithium-Halide Exchange, Vinyl-Cyclopropane Rearrangement