A novel synthesis of carboxylic acid derivatives having a quaternary carbon at 3-position and functional groups at 4-position from 1-chlorovinyl p-tolyl sulfoxides and acetic acid esters
作者:Tsuyoshi Satoh、Shimpei Sugiyama、Hiroyuki Ota
DOI:10.1016/s0040-4039(02)00414-8
日期:2002.4
lithium enolate of acetic acid esters to 1-chlorovinyl p-tolyl sulfoxides, which were derived from ketones and chloromethyl p-tolyl sulfoxide in three steps in good yields, gave carboxylicacid esters having a quaternary carbon at the 3-position, and chlorine and sulfinyl groups at the 4-position in high yields. Various kinds of functionalized carboxylicacidderivatives, including spiro-lactones,