Metalation reactions. XXIV. Metalation of (vinylthio)benzene
作者:Maria Grazia Cabiddu、Salvatore Cabiddu、Enzo Cadoni、Rita Cannas、Claudia Fattuoni、Stefana Melis
DOI:10.1016/s0040-4020(98)00869-2
日期:1998.11
(vinylthio)benzene (1) and then an electrophilic quenching followed by a further metalation/electrophilic quenching is a general method to prepare in one pot (alkylthio)benzenes ortho, alpha-substituted with equal or different groups. The direct dimetalation of 1 affords the ortho, alpha-dilithiated species 15 besides other by-products. Starting from 15 it is possible to obtain in one step ortho, alpha-substituted
将有机锂化合物加到(乙烯基硫代)苯(1)中,然后进行亲电淬火,然后进一步金属化/亲电淬火是在一个罐中制备用等价或不同基团被邻位α-取代的邻位(烷硫基)苯的一般方法。的直接dimetalation 1次,得到邻,α- -dilithiated物种15之外的其它副产物。从15开始,可以一步获得邻位的α-取代的(乙烯基硫代)苯和杂环化合物。