Two benzimidazolium moieties linked by one or two xylyls (m- and p-) have been synthesized, characterized and then they were used for Heck coupling reactions as in situ formed catalysts. Mono bridged salts are more efficient as compared to bisbridged salts. In addition, mono bridged salts were converted to Rh–NHC complexes which were tested as catalysts for the arylation of aldehydes.
已经合成,表征了两个由一个或两个二
甲苯基(m-和p-)连接的
苯并咪唑部分,然后将它们作为原位形成的催化剂用于Heck偶联反应。与双桥盐相比,单桥盐更有效。此外,单桥盐被转化为Rh-NHC络合物,经测试可作为醛芳基化的催化剂。