Silver(i) catalyzed intramolecular cyclization of N-(2-(alk-1-yn-1-yl))-1H-tetrazoles leading to the formation of N-cyano-2-substituted indoles under ambient conditions

Synthesis of N-heterocycles from N-(2-(alk-1-yn-1-yl))tetrazoles to obtain N-cyano 2-substituted indoles as selective products.