Six-Component Azido-Ugi Reaction: from Cyclic Ketimines to Bis-Tetrazole-Derived 5-7-Membered Amines
作者:Irina V. Kutovaya、Danil P. Zarezin、Olga I. Shmatova、Valentine G. Nenajdenko
DOI:10.1002/ejoc.201900244
日期:2019.4.24
The six‐component azido‐Ugi reaction with 2‐substituted 5–7‐membered imines leads to mono‐ or bis‐tetrazole derivatives depending on the starting imines. The reaction is very general regarding isocyanide structure and enables preparation of 1,5‐disubstituted bis‐tetrazole derivatives connected with 5–7‐membered cyclic amine fragments. Subsequent catalytic debenzylation provides the corresponding 1H‐tetrazoles