An efficient reusable silver-exchanged tungstophosphoric acid heterogeneous catalyst for solvent-free intermolecular hydroamination of alkynes
作者:N. Lingaiah、N. Seshu Babu、K. Mohan Reddy、P. S. Sai Prasad、I. Suryanarayana
DOI:10.1039/b613013e
日期:——
Hydroamination of alkynes with both aromatic and aliphatic amines proceeds efficiently in the presence of silver-exchanged tungstophosphoric acid (AgTPA) catalyst under solvent-free conditions to afford ketimines in excellent yields.