作者:Aiichiro Nagaki、Naofumi Takabayashi、Yutaka Tomida、Jun-ichi Yoshida
DOI:10.1021/ol8015572
日期:2008.9.18
Selective monolithiation of dibromobiaryls, such as 2,2'-dibromobiphenyl, 4,4'-dibromobiphenyl, 2,7-dibromo-9,9-dioctylfluorene, 2,2'-dibromo-1,1'-binaphthyl, and 5,5'-dibromo-2,2'-bithiophene, with 1 equiv of n-butyllithium followed by the reaction with electrophiles was achieved using a microflow system by virtue of fast micromixing and precise temperature control. Sequential introduction of two
二溴联芳基的选择性单锂化反应,例如2,2'-二溴联苯,4,4'-二溴联苯,2,7-二溴-9,9-二辛基芴,2,2'-二溴-1,1'-联萘和5,使用微流系统,通过快速微混合和精确的温度控制,获得了具有1当量正丁基锂的5'-dibromo-2,2'-联噻吩,然后与亲电试剂反应。使用由四个微混合器和四个微管反应器组成的微流系统,还可以实现基于此方法的两种不同亲电试剂的顺序引入。