Rearrangements and Reactions of Stable Sulfonium Ylids from Acetylenic Sulfonium Salts
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概要
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Dimethylsulfonium 2-oxo-3,4-diphenyl-3-butenylide derivatives (Ia-c) rearranged in boiling ethanol, in a Pummerer-type fashion, to produce 1,2-diphenyl-3-methylthiomethoxy-1,3-butadiene (IVa-c). Nucleophilicity of the ylid (I) was examined by the reactions described below. I-a still reacted with dimethyl acetylenedicarboxylate and ethyl propiolate to afford new stable ylids of dimethylsulfonium 1,2-dimethoxycarbonyl-4-oxo-5,6-diphenyl-1,5-hexadien-3-ylide (IX) and dimethylsulfonium 1-ethoxycarbonyl-4-oxo-5,6-diphenyl-1,5-hexadien-3-ylide (X), respectively. I also reacted with phenylisocyanate derivatives forming stable ylids, dimethylsulfonium 1-phenylcarbamoyl-2-oxo-3,4-diphenyl-3-butenylide derivatives (XIa-e).
- 公益社団法人日本薬学会の論文
- 1970-03-25
著者
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岸田 有吉
Central Research Laboratories Sankyo Co. Ltd.
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寺田 敦祐
Central Research Laboratories, Sankyo Co., Ltd.
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寺田 敦祐
京都薬科大学 化学研究所
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