α-Sulfenylalkylation of carbonyl compounds at the α-position via magnesium amide-induced enamine sulfenylalkylation with sulfoxides
作者:Kazuhiro Kobayashi、Masataka Kawakita、Susumu Irisawa、Hideki Akamatsu、Kouji Sakashita、Osamu Morikawa、Hisatoshi Konishi
DOI:10.1016/s0040-4020(98)83005-6
日期:1998.3
The reactions of enamines with sulfoxides bearing α-hydrogens in the presence of a magnesium amide, generated in situ from the reaction of ethylmagnesium bromide with diisopropylamine, afforded the corresponding α-sulfenylalkylated ketones and aldehydes in isolated yields ranging from 39 to 76%. This procedure was successfully extended to the bis(methylthio)methylation with methyl (methylthio)methyl
烯胺与溴化亚乙基亚乙基溴化镁与二异丙胺的反应在原位生成的酰胺酰胺存在下,烯胺与带有α氢的亚砜的反应以分离的收率在39%至76%范围内提供了相应的α-亚磺酰基烷基化的酮和醛。该方法成功地扩展到用甲基(甲硫基)甲基亚砜进行双(甲硫基)甲基化。