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Yoshio Negishi

University of Tokyo

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Publication

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Tetrahedron Letters | 1981

Wittig-horner reaction of a phosphonate of reissert analogue a new method for introduction of alkyl groups into isoquinoline

Kin-ya Akiba; Yoshio Negishi; Katsuyuki Kurumaya; Noboru Ueyama; Naoki Inamoto

Abstract Dimethyl 2-isopropoxycarbonyl-1, 2-dihydroisoquinoline-1-phosphonate ( 1 ) was prepared from isoquinoline, isopropyl chloroformate, and trimethyl phosphite. Wittig-Horner reaction of 1 with various aldehydes afforded the corresponding exo-methylene compounds, which were converted to 1-substituted isoquinolines with hydrogen chloride.

Journal of The Chemical Society, Chemical Communications | 1982

A new simple synthesis of variously substituted furans and butenolides

Renji Okazaki; Yoshio Negishi; Naoki Inamoto

The reaction of 1,2-disubstituted 3,3-bis(methylthio)prop-2-en-1-ones with dimethylsulphonium methylide gave 2,2-bis[methylthio]-2,5-dihydrofurans, useful synthons for a variety of furans and butenolides.

Journal of Organic Chemistry | 1984

Reactions of .alpha.-oxo ketene dithioacetals with dimethylsulfonium methylide: a new versatile synthesis of furans and butenolides

Renji Okazaki; Yoshio Negishi; Naoki Inamoto

Bulletin of the Chemical Society of Japan | 1984

Preparation of 13-substituted 8H-dibenzo(a,g)quinolizin-8-ones by intramolecular Wittig-Horner reaction of dialkyl 2-(o-acylbenzoyl)-1,2-dihydro-1-isoquinolylphosphonates.

Kin-ya Akiba; Yoshio Negishi; Naoki Inamoto

Synthesis | 1979

A Facile General Synthesis of Dimethyl 1-Acyl-1,2-dihydroquinoline-2-phosphonates and 2-Acyl-1,2-dihydroisoquinoline-1-phosphonates

Kin-ya Akiba; Yoshio Negishi; Naoki Inamoto

Bulletin of the Chemical Society of Japan | 1984

Preparation of Tetraalkyl 2,2′-Phthaloylbis[1,2-dihydro-1-isoquinolylphosphonate]s and their Reactions with Base

Kin-ya Akiba; Yoshio Negishi; Naoki Inamoto

Chemistry Letters | 1982

INTRAMOLECULAR WITTIG-HORNER REACTION OF DIMETHYL 2-(o-ACYLBENZOYL)-l, 2-DIHYDROISOQUINOLINE-l-PHOSPHONATE : FACILE SYNTHESIS OF AN ISOQUINOLINE ALKALOID SKELETON

Kin-ya Akiba; Yoshio Negishi; Naoki Inamoto

ChemInform | 1983

Synthesis of Furans and Butenolides Using Acylketene Dithioacetals.

Renji Okazaki; Yoshio Negishi; Naoki Inamoto

ChemInform | 1981

SYNTHESIS OF PHOSPHONATES FROM HETEROAROMATIC CATIONS AND THEIR USE IN WITTIG-HORNER REACTION: ON ISOQUINOLINE AND QUINOLINE SERIES

Kin-ya Akiba; Yoshio Negishi; Katsuyuki Kurumaya; Naoki Inamoto

ChemInform | 1985

REACTIONS OF α-OXO KETENE DITHIOACETALS WITH DIMETHYLSULFONIUM METHYLIDE: A NEW VERSATILE SYNTHESIS OF FURANS AND BUTENOLIDES

Renji Okazaki; Yoshio Negishi; Naoki Inamoto

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Naoki Inamoto

University of Tokyo

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Kin-ya Akiba

Waseda University

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Renji Okazaki

Japan Women's University

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Katsuyuki Kurumaya

University of Tokyo

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Noboru Ueyama

University of Tokyo

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