Investigation of the Carboxylate Position during the Acylation Reaction Catalyzed by Biaryl DMAP Derivatives with an Internal Carboxylate
作者:Reiko Nishino、Takumi Furuta、Keizo Kan、Makoto Sato、Masahiro Yamanaka、Takahiro Sasamori、Norihiro Tokitoh、Takeo Kawabata
DOI:10.1002/anie.201300665
日期:2013.6.17
of the carboxylate ion: A series of biaryl DMAP catalysts with an internal carboxylate was prepared, and the catalytic activities of the derivatives were evaluated to determine the carboxylate position that most accelerated the DMAP‐catalyzed acylation. The carboxylate ion proximal to the pyridine ring in a face‐to‐face geometry was found to act as an effective general base for the acylation reaction
羧酸根离子的位置:制备了一系列带有内部羧酸根的联芳基DMAP催化剂,并对衍生物的催化活性进行了评估,以确定最加速DMAP催化的酰化作用的羧酸根位置。发现面对面几何结构中靠近吡啶环的羧酸根离子可作为酰化反应的有效通用基础。