A new simple synthesis of variously substituted furans and butenolides

R Okazaki, Y Negishi, N Inamoto

Index: Okazaki, Renji; Negishi, Yoshio; Inamoto, Naoki Journal of the Chemical Society, Chemical Communications, 1982 , # 18 p. 1055 - 1056

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Abstract

The reaction of 1,2-disubstituted 3,3-bis(methylthio)prop-2-en-l -ones with dimethylsulphonium methylide gave 2,2-bis(methylthio)-2,5-dihydrofurans, useful synthons for a variety of furans and butenolides. ... During the course of our study on conjugated keten dithio- acetals,l we have found that the reaction of 3,3-bis(methyl- t hio)prop-2-en- 1 -ones (1) with dimet hylsulphonium methylide (2) gives 2,2-bis(methylthio)-2,5-dihydrofurans (3), very useful synthons for a ...

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