E. Wada

发表

SYNTHESIS AND CHEMISTRY OF A BRIDGEHEAD ENOL LACTONE

K. Shea, E. Wada, 1982 .

ASYMMETRIC CONJUGATE ADDITION OF THIOLS TO A 3-(2-ALKENOYL)-2-OXAZOLIDINONE CATALYZED BY THE DBFOX/PH AQUA COMPLEX OF NICKEL(II) PERCHLORATE

S. Kanemasa, E. Wada, and Yoji Oderaotoshi, 1999 .

Temperature dependent 1H NMR study of the substrate complex derived from zinc(II) perchlorate, (R,R)-4,6-dibenzofurandiyl-2,2′-bis(4-phenyloxazoline), and 3-acetyl-2-oxazolidinone. Evidence for octahedral structure of the substrate complex

J. Tanaka, S. Kanemasa, Yoji Oderaotoshi, 1998 .

Transition-Metal Aqua Complexes of 4,6-Dibenzofurandiyl-2,2‘-bis(4-phenyloxazoline). Effective Catalysis in Diels−Alder Reactions Showing Excellent Enantioselectivity, Extreme Chiral Amplification, and High Tolerance to Water, Alcohols, Amines, and Acids

D. Curran, Hidetoshi Yamamoto, J. Tanaka, 1998 .

Metallic base-induced and Lewis acid-catalyzed nitrone cycloadditions to allyl alcohol dipolarophiles. Highly effective regio- and stereocontrol

S. Kanemasa, E. Wada, T. Tsuruoka, 1993 .

Fluoride-catalyzed aldol reaction of ethyl trimethylsilyldiazoacetate with aldehydes leading to ethyl α-diazo-β-hydroxy esters and rhodium catalyzed decarboxylative rearrangement of diazo urethanes leading to β- amino acrylates

S. Kanemasa, E. Wada, Takahiro Araki, 1999 .

Triethylamine-Mediated Generation of a Synthetic Equivalent of Parent Azomethine Imine by Condensation of Ethyl 3-Benzylcarbazate with Paraformaldehyde

Naoki Tomoshige, S. Kanemasa, O. Tsuge, 1989 .

Cationic Aqua Complexes of the C2-Symmetric trans-Chelating Ligand (R,R)-4,6-Dibenzofurandiyl-2,2′-bis(4-phenyloxazoline). Absolute Chiral Induction in Diels-Alder Reactions Catalyzed by Water-Tolerant Enantiopure Lewis Acids

D. Curran, Hidetoshi Yamamoto, J. Tanaka, 1997 .

22,-Dimethyl-4-phenyloxazoline and 2,2-dimethyl-4,5-diphenylimidazolidine as new chiral auxiliaries. Applications to asymmetric nitrile oxide cycloadditions

K. Onimura, J. Tanaka, S. Kanemasa, 1991 .

A New Annulation Reagent, 2-Oxo-3-alkenylphosphonates. Reactions with Carbonyl-Stabilized Carbanions or Silyl Enol Ethers Leading to Cyclohexenones

S. Kanemasa, E. Wada, J. Funakoshi, 1992 .

A new methodology of intramolecular hetero Diels–Alder reaction with β-alkoxy-substituted conjugated nitroalkenes as heterodienes: stereoselective one-pot synthesis of trans-fused bicyclic γ-lactones

M. Yoshinaga, E. Wada, 2003 .

Highly Endo- and Enantioselective Asymmetric Nitrone Cycloadditions Catalyzed by the Aqua Complex of 4,6-Dibenzofurandiyl-2,2‘-bis(4-phenyl- oxazoline)−Nickel(II) Perchlorate. Transition Structure Based on Dramatic Effect of MS 4A on Selectivities

J. Tanaka, S. Kanemasa, Yoji Oderaotoshi, 1998 .

Bisoxazoline and Bioxazoline Chiral Ligands Bearing 4-Diphenylmethyl Shielding Substituents. Diels-Alder Reaction of Cyclopentadiene with 3-Acryloyl-2-oxazolidinone Catalyzed by the Aqua Nickel(II) Complex

K. Adachi, Hidetoshi Yamamoto, S. Kanemasa, 2000 .

Chiral Lewis Acid-Catalyzed Asymmetric Diels-Alder Reactions of (E)-1-Phenylsulfonyl-3-alken-2-ones with Cyclopentadiene

W. Pei, S. Kanemasa, E. Wada, 1994 .

Chiral Lewis Acid-Catalyzed Asymmetric Hetero Diels-Alder Reaction of (E)-2-Oxo-1-phenylsulfonyl-3-alkenes with Vinyl Ethers

S. Kanemasa, E. Wada, H. Yasuoka, 1994 .

Summer School in Moji-ko

T. Kitamura, H. Nagashima, S. Kanemasa, 2001 .

A Convenient Route to 2-Lithio-1,3-butadiene from Chloroprene via 2-Stannyl-1,3-butadiene

I. Fujiwara, S. Kanemasa, O. Tsuge, 1985 .

Double Diels-Alder Reaction of trans-3-Methylene-1,4-hexadiene and 1-Methyl-3-methylene-4-pentenyl Tosylate

S. Kanemasa, O. Tsuge, E. Wada, 1986 .

Lewis acid-catalyzed reactions of ethyl diazoacetate with aldehydes. Synthesis of α-formyl esters by a sequence of aldol reaction and 1,2-nucleophilic rearrangement

S. Kanemasa, E. Wada, Takahiro Araki, 1999 .

CROSS DIENE-TRANSMISSIVE DIELS-ALDER CYCLOADDITION REACTION OF BIS(SILYLOXY) CROSS-CONJUGATED TRIENES.

S. Kanemasa, O. Tsuge, E. Wada, 1984 .

3-BENZYLIDENE-2,4-BIS(TRIMETHYLSILYLOXY)-1,4-PENTADIENE; SYNTHESIS AND ITS DIENE-TRANSMISSIVE DIELS–ALDER REACTION

S. Kanemasa, O. Tsuge, E. Wada, 1983 .

Generation of Nitrile Oxides Through O-Metalation of Hydroximoyl Chlorides. Chelation-Controlled syn-Selective Cycloaddition of Nitrile Oxides to α-Substituted Allyl Alcohols.

Hidetoshi Yamamoto, S. Kanemasa, Shigeru Kobayashi, 1991 .

Asymmetric Cycloaddition of N-Metalated Azomethine Ylides with the Optically Active α,β-Unsaturated Esters Derived from α-Amino Acids

Hidetoshi Yamamoto, S. Kanemasa, T. Sakurai, 1990 .

A novel catalytic enantioselective tandem transetherification–intramolecular hetero Diels–Alder reaction of methyl (E)-4-methoxy-2-oxo-3-butenoate with δ,ε-unsaturated alcohols

H. Koga, G. Kumaran, E. Wada, 2002 .

Synthesis of Hexahydroindenones through a Diels–Alder Cycloaddition and Nazarov Cyclization Sequence of Triene Alcohols

I. Fujiwara, S. Kanemasa, O. Tsuge, 1987 .

Exclusively endo-selective lewis acid-vatalyzed hetero diels-alder reactions of (E)-1-phenylsuifonyl-3-alken-2-ones with vinyl ethers

W. Pei, S. Kanemasa, E. Wada, 1996 .

Triethylamine‐Mediated Generation of a Synthetic Equivalent of Parent Azomethine Imine by Condensation of Ethyl 3‐Benzylcarbazate with Paraformaldehyde.

Naoki Tomoshige, S. Kanemasa, O. Tsuge, 1990 .

syn-selective Michael addition of lithiated 2-alkoxyacetates and -acetamides to α,β-unsaturated carbonyl compounds

S. Kanemasa, E. Wada, M. Nomura, 1991 .

Michael Addition of Acyclic Lithium 1,3-Dien-2-olates with α,β-Unsaturated Esters, Ketones, and Diesters

S. Kanemasa, E. Wada, M. Nomura, 1991 .

A new synthetic route to 1,4-dicarbonyl compounds based on the utility of the rearrangement of protonated cyclopropyl ketones. A simple synthesis of dihydrojasmone

T. Nakai, M. Okawara, E. Wada, 1975 .

Oxidative rearrangements of tertiary cyclopropylcarbinols leading to .beta.,.gamma.-unsaturated ketones. A simple approach to 1,4-carbonyl transposition

T. Nakai, M. Okawara, E. Wada, 1979 .

Stereoselective Michael addition of the imines of α-amino esters in the presence of lithium bromide/1,8-diazabicyclo[5.4.0]undec-7-ene

S. Kanemasa, E. Wada, O. Uchida, 1990 .

STEREOSELECTIVITY OF DIENE-TRANSMISSIVE DIELS-ALDER REACTION; CYCLOADDITION REACTION OF CROSS-CONJUGATED TRIENE SYSTEM TO OLEFINIC DIENOPHILES

S. Kanemasa, O. Tsuge, E. Wada, 1983 .

A Diels–Alder Cycloaddition and Electrocyclization Sequence as a New [6.5] Annelation Method to Benzene Ring

S. Kanemasa, O. Tsuge, E. Wada, 1986 .

TWO SIX-MEMBERED RINGS ANNELATION TO CYCLIC KETONES THROUGH TWO SEQUENTIAL DIELS–ALDER REACTIONS

S. Kanemasa, O. Tsuge, E. Wada, 1984 .

Asymmetric Dipolar Cycloaddition of Nitrile Oxides to the α,β-Unsaturated Esters Bearing an Imidazolidine Chiral Controller at the β-Position

Takashi Hayashi, Hidetoshi Yamamoto, S. Kanemasa, 1991 .

Stepwise sequence of double Diels-Alder reaction of cross-conjugated triene equivalent

S. Kanemasa, O. Tsuge, E. Wada, 1984 .

Highly diastereoselective Michael addition of lithiated camphor imines of glycine esters to α,β-unsaturated esters. Synthesis of optically pure 5-oxo-2,4-pyrrolidinedicarboxylates of unnatural stereochemistry

S. Kanemasa, A. Tatsukawa, E. Wada, 1991 .

anti-selective aldol reactions of titanium enolates of n-alkylideneglycinates. Stereoselective synthesis of anti-isomers of β-hydroxy-α-amino Esters

S. Kanemasa, A. Tatsukawa, E. Wada, 1993 .

Asymmetric Michael Addition of the N-Alkylidene Derivative of an α-Amino Ester to Methyl (E)-3-[(3R,7aS)-2-Phenylperhydropyrrolo[1,2-c]imidazol-3-yl]propenoate

Hidetoshi Yamamoto, S. Kanemasa, E. Wada, 1991 .

Regiocontrol of nitrile oxide cycloadditions to allyl alcohols. Synthesis of 4-substituted and 4,4-disubstituted 5-hydroxymethyl-2-isoxazolines

S. Kanemasa, E. Wada, M. Nishiuchi, 1992 .

Intramolecular Cycloaddition of the Azomethine Ylides Derived from α-Amino Acids or Esters and 5-Oxo-6-heptenals or 4-Oxo-5-hexenals

S. Kanemasa, K. Doi, E. Wada, 1990 .

Highly Endo‐ and Enantioselective Asymmetric Nitrone Cycloadditions Catalyzed by the Aqua Complex of 4,6‐Dibenzofurandiyl‐2,2′‐bis(4‐phenyloxazoline)—Nickel(II) Perchlorate. Transition Structure Based on Dramatic Effect of MS 4A on Selectivities.

J. Tanaka, S. Kanemasa, Yoji Oderaotoshi, 1999 .

Lewis acid-catalyzed nitrone cycloadditions to bidentate and tridentate α,β-unsaturated ketones. High rate acceleration, absolutely endo-selective and regioselective reactions

T. Uemura, S. Kanemasa, E. Wada, 1992 .

Synthesis and Consecutive Double Diels–Alder Cycloadditions of 3-Methylene-5-phenylsulfinyl-1-pentene as a Synthetic Equivalent of Parent Cross-conjugated Triene, 3-Methylene-1,4-pentadiene

S. Kanemasa, O. Tsuge, N. Nagasaki, 1986 .

Thermal rearrangement of dienolesters. Sequential [1.3] sigmatropic rearrangement and intramolecular diels-alder cycloaddition of 1-methylene-2-methyl-2-propenyl hex-5-enoate

K. Shea, E. Wada, 1982 .

New synthesis of 2-oxo-3-alkenylphosphonates and hetero diels−Alder reactions with vinyl ethers leading to 5-substituted 2-phosphinyl-2-cyclohexen-1-ones

S. Kanemasa, O. Tsuge, E. Wada, 1989 .

Diene-transmissive Diels-Alder Reactions and Their Related Reactions

S. Kanemasa, O. Tsuge, E. Wada, 1986 .

A NEW SYNTHESIS OF 2-(6-CARBOXYHEXYL)CYCLOPENT-2-EN-1-ONE, A PROSTANOID SYNTHON

T. Nakai, M. Okawara, E. Wada, 1977 .

A New Method for The Synthesis of Butatrienes

S. Kajigaeshi, N. Kuroda, E. Wada, 1971 .

A NEW METHOD FOR CYCLOPENTENONE ANNELATION VIA THE REARRANGEMENT OF BICYCLIC CYCLOPROPYL KETONES. SYNTHESES OF BICYCLO[4.3.0] NON-6-EN-8-ONE AND BICYCLO[5.3.0]DEC-7-EN-9-ONE

T. Nakai, M. Okawara, E. Wada, 1976 .

A NEW METHOD FOR CYCLOPENTENONE ANNELATION VIA THE REARRANGEMENT OF BICYCLIC CYCLOPROPYL KETONES. SYNTHESES OF BICYCLO(4.3.0)NON-6-EN-8-ONE AND BICYCLO(5.3.0)DEC-7-EN-9-ONE

T. Nakai, M. Okawara, E. Wada, 1977 .

Absolutely Diastereoselective Asymmetric Michael Addition of the Camphor Imine of t-Butyl Aminoacetate with 2-Alkylidenemalonates

S. Kanemasa, O. Tsuge, A. Tatsukawa, 1989 .

A novel tandem transetherification—intramolecular hetero Diels–Alder reactions for construction of fused heterocycles

G. Kumaran, S. Kanemasa, E. Wada, 2000 .