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
作者:Tsuyoshi Satoh、Takumi Kumagawa、Atsushi Sugimoto、Koji Yamakawa
DOI:10.1246/bcsj.60.301
日期:1987.1
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
容易从羰基化合物和1-氯-3-苯硫基丙基苯基亚砜衍生的α,β-环氧亚砜用苯硒酸钠处理,以优异的产率得到β-苯硫基羰基化合物。苯硫基被氧化成亚磺酰基,然后用碱处理,以相当好的产率得到烷基乙烯基酮。该反应提供了一种通过三碳同系化从羰基化合物制备烷基乙烯基酮的新方法。用苯硫醇处理上述α,β-环氧亚砜得到α,β'-双(苯硫基)酮。消除两个硫基得到二乙烯基酮。