Asymmetric NH Insertion of Secondary and Primary Anilines under the Catalysis of Palladium and Chiral Guanidine Derivatives
作者:Yin Zhu、Xiaohua Liu、Shunxi Dong、Yuhang Zhou、Wei Li、Lili Lin、Xiaoming Feng
DOI:10.1002/anie.201308501
日期:2014.2.3
Efficient enantioselective NH insertion reactions of secondary and primary anilines were catalyzed by palladium(0) in combination with chiral guanidine derivatives. A broad range of substituted anilines were tolerated, and the corresponding products were obtained in high yield (up to 99 %) with good enantioselectivity (up to 94 % ee) under mild reaction conditions. The NH insertion mechanism was
钯(0)结合手性胍衍生物可催化仲苯胺和伯苯胺的高效对映选择性N NH插入反应。在宽泛的取代苯胺耐受性,并且在温和的反应条件下,以高收率(高达99%ee)和良好的对映选择性(高达94%ee)获得了相应的产物 。所述N个用的动力学同位素效应,对照实验中,HRMS,和光谱分析的研究考察ħ插入机构。