The reaction of stable phosphorus ylides
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Kentaro Okuma; Tomoko Ishida; Shinya Morita; Hiroshi Ohta; Tohru Inoue
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Article
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1995
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John Wiley and Sons
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English
โ 524 KB
Metal and temperature effects on thio-Wittig reactions have been studied. Stabilized phosphorus ylides, such as carbomethoxymethylenetriphenylphosphorane, reacted with sulfur to afford dimethyl maleate and dimethyl fumarate in a 1 : 4 ratio. As in the case of conventional Wittig reactions with semis