Preparation of Functionalized α-Chloromethyl Ketones Using Rieke Zinc
作者:Reuben D. Rieke、Jeff D. Brown、Xiaoming Wu
DOI:10.1080/00397919508011467
日期:1995.12
Abstract The cross-coupling reaction of highly functionalized organozinc reagents with chloroacetyl chloride mediated by copper allows for the easy preparation of functonalized α-chloromethyl ketones in excellent yields.
The synthesis of 3-cyano-7-methoxy-3-methyl-4-oxo-1,2,3,4-tetrahydrodibenzothiophene is described. The latter could not be converted to B-nor-6-thiaequilenin, the thioster of equilenin since it failed to undergo Stobbe Condensation with diethyl succinate.
The synthesis of dl-B-nor-6-oxaequilenin starting from 7-methoxy-4-oxo-1,2,3,4-tetrahydrobinzofuran is described. The latter compound was prepared from the known γ-(2,4-diydroxybenzoyl)-butyric acid.