A straightforward and general procedure for the introduction of aryl and vinyl substituents in the 5 or 7 position of 8-hydroxyquinoline has been developed. The methodology presented is based upon the Suzuki cross-coupling reaction of aryl or vinyl halides with 5-(4,4,5,5-tetramethyl[1,3,2]dioxaborolan-2-yl)quinolin-8-ol or 7-(4,4,5,5-tetramethyl[1,3,2]dioxaborolan-2-yl)quinolin-8-ol, respectively, that have been obtained regioselectively starting from 8-hydroxyquinoline.
开发了一种直接且通用的方法,用于在
8-羟基喹啉的5位或7位引入芳基和
乙烯基取代基。该方法基于Suzuki交叉偶联反应,利用芳基或
乙烯基卤化物与5-(4,4,5,5-四甲基[1,3,2]二氧
硼烷-2-基)
喹啉-8-醇或7-(4,4,5,5-四甲基[1,3,2]二氧
硼烷-2-基)
喹啉-8-醇反应,这两种化合物均由
8-羟基喹啉区域选择性地制备得到。