Kinetic Resolution of 1,
<scp>2‐Diamines</scp>
via Organocatalyzed Asymmetric Electrophilic Aminations of Anilines
作者:Jinglei Xie、Zheng Guo、Wei Liu、Dekun Zhang、Yu‐Peng He、Xiaoyu Yang
DOI:10.1002/cjoc.202200125
日期:2022.7.15
efficient kinetic resolution (KR) protocol for 1,2-diamines has been developed through asymmetric electrophilic aminations of anilines enabled by chiral phosphoric acid catalysis. A wide array of substituted 1,2-diamines were compatible with this method, generating both the recovered staring materials and the amination products with high enantioselectivities (with s-factor up to 218). Notably, this method
Synthesis of Chiral Vicinal Diamines by Silver(I)-Catalyzed Enantioselective Aminolysis of N-Tosylaziridines
作者:Zhuo Chai、Pei-Jun Yang、Hu Zhang、Shaowu Wang、Gaosheng Yang
DOI:10.1002/anie.201610693
日期:2017.1.9
The kinetic resolution of 2‐aryl‐N‐tosylaziridines and the asymmetric desymmetrization of meso‐N‐tosylaziridines by ring openings with various primary and secondary anilines, and aliphatic amines as nucleophile have been realized by using a single silver(I)/chiral diphosphine complex as catalyst for the first time. The simple starting materials, broad scope, and easy scalability render this protocol