The synthesis of novel highly substituted benzene derivatives for use in palladium-catalysed cross-coupling reactions
作者:Michael Hird、Robert A. Lewis、Kenneth J. Toyne、Jonathan J. West、Michael K. Wilson
DOI:10.1039/a804525i
日期:——
A combination of conventional electrophilic aromatic substitution reactions and low-temperature ortho-directed lithiations has been used in the efficient synthesis of some novel highly substituted benzene derivatives containing alkoxy, alkyl, bromo, cyano, fluoro and iodo functions. The use of such compounds is exemplified by selective palladium-catalysed cross-coupling reactions to generate a series
常规亲电子芳族取代反应和低温邻位锂化反应的组合已用于有效合成一些新颖的高度取代的苯衍生物,这些衍生物含有烷氧基,烷基,溴,氰基,氟和碘官能。使用这样的化合物的通过选择性钯催化的交叉偶联反应例举以产生具有侧向氟取代基的一系列液晶三联苯的邻位于横向氰基。