Scope and Limitations of Auxiliary-Assisted, Palladium-Catalyzed Arylation and Alkylation of sp<sup>2</sup> and sp<sup>3</sup> C–H Bonds
作者:Enrico T. Nadres、Gerson Ivan Franco Santos、Dmitry Shabashov、Olafs Daugulis
DOI:10.1021/jo4013628
日期:2013.10.4
auxiliary-assisted direct arylation and alkylation of sp2 and sp3 C–H bonds of amine and carboxylic acid derivatives has been investigated. The method employs a palladium acetate catalyst, substrate, aryl, alkyl, benzyl, or allyl halide, and inorganic base in tert-amyl alcohol or water solvent at 100–140 °C. Aryl and alkyl iodides as well as benzyl and allyl bromides are competent reagents in this transformation
已经研究了钯催化、辅助辅助的胺和羧酸衍生物的 sp 2和 sp 3 C-H 键的直接芳基化和烷基化的范围。该方法使用乙酸钯催化剂、底物、芳基、烷基、苄基或烯丙基卤化物和无机碱,在叔戊醇或水溶剂中,温度为 100–140 °C。芳基和烷基碘以及苄基和烯丙基溴是该转化中的有效试剂。吡啶甲酸助剂用于胺γ-官能化,8-氨基喹啉助剂用于羧酸β-官能化。为了获得最佳结果,需要对碱、添加剂和溶剂进行一些优化。