Electrolytic decarboxylation reactions. 4. Electrosyntheses of 3-alkyl-2-cycloalken-1-ol acetates from 1-alkyl-2-cycloalkene-1-carboxylic acids. Preparation of dl-muscone from cyclopentadecanone
Environmentally friendly TPDS-mediated free radical ring expansion of α-haloalkyl cyclic β-keto esters
作者:Masaaki Sugi、Hideo Togo
DOI:10.1016/s0040-4020(02)00241-7
日期:2002.4
Reactivities of tetraphenyldisilane (TPDS), tris(trimethylsilyl)silane, and tributyltin hydride in the radicalringexpansion of α-haloalkyl cyclic β-keto esters were examined. Among these reagents, TPDS was found most effective for the preparation of medium-sized cyclic compounds in terms of yields and ring-expansion/reduction selectivity.