作者:Hong-Yu Wang、Kai Zhang、Chang-Wu Zheng、Zhuo Chai、Dong-Dong Cao、Jia-Xing Zhang、Gang Zhao
DOI:10.1002/anie.201409342
日期:2015.2.2
combination of a new bifunctional phosphine and an acrylate generate a zwitterion in situ and it serves as an efficient catalyst for asymmetric reactions through a homogeneous ion‐pairing mode. This new catalytic system has been successfully applied to Mannich‐type reactions to give excellent results and it demonstrates a broad substrate scope. Such reactivity is not accessible with general organophosphine catalytic
新的双官能膦和丙烯酸酯的组合可在原位生成两性离子,并通过均相离子对模式充当不对称反应的有效催化剂。这种新的催化系统已成功应用于曼尼希型反应中,从而获得了优异的结果,并且证明了广泛的底物范围。这种反应性是一般有机膦催化模式无法达到的。还介绍了对该机制的初步研究。