Chemical & Synthetic Development, Bristol-Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08903, United States.
J Org Chem. 2017 Jul 7;82(13):7040-7044. doi: 10.1021/acs.joc.7b01003. Epub 2017 Jun 22.
Conditions have been developed for the palladium-catalyzed cyanation of aryl bromides utilizing the air-stable XantPhos-PdCl precatalyst. By employing a trialkylamine as a reducing agent, the active Pd(0) species is generated in situ, alleviating the need to employ the air-sensitive Pd(dba). Twenty-two substituted benzonitriles have been synthesized using this method.
已经开发出了利用稳定的 XantPhos-PdCl 前催化剂实现芳基溴化物的钯催化氰化反应的条件。通过使用三烷基胺作为还原剂,可以原位生成活性 Pd(0)物种,从而避免使用对空气敏感的 Pd(dba)。该方法已经合成了 22 种取代苯甲腈。