A novel synthesis of alkyl vinyl ketones and divinyl ketones from carbonyl compounds by three-carbon homologation
作者:Tsuyoshi Satoh、Takumi Kumagawa、Koji Yamakawa
DOI:10.1016/s0040-4039(00)84559-1
日期:1986.1
Alkyl vinyl ketones and divinyl ketones are synthesized from carbonyl compounds and 1-chloro-3-phenylthiopropyl phenyl sulfoxide as a three-carbonhomologatingagent in good overall yields.
作者:SATOH TSUYOSHI、 KUMAGAWA TAKUMI、 SUGIMOTO ATSUSHI、 YAMAKAWA KOJI
DOI:——
日期:——
α,β-Epoxy Sulfoxides as Useful Intermediates in Organic Synthesis. IX. A Novel Synthesis of Alkyl Vinyl Ketones and Divinyl Ketones from Carbonyl Compounds and 1-Chloro-3-phenylthiopropyl Phenyl Sulfoxide as a Three-Carbon Homologating Agent
The α,β-epoxy sulfoxides easily derived from carbonyl compounds and 1-chloro-3-phenylthiopropyl phenyl sulfoxide were treated with sodium benzeneselenolate to give β-phenylthio carbonyl compounds in excellent yields. The phenylthio group was oxidized to the sulfinyl group and was then treated with a base to afford alkyl vinyl ketones in quite good yields. This reaction presents a novel method for the