A ruthenium-carbamato-complex derived from a siloxylated amine and carbon dioxide for the oxidative α-cyanation of aromatic and cyclic tertiary amines

Abstract

The ruthenium carbamate complex derived from 3-trimethoxysilyl-1-propyl amine and carbon dioxide was found to be a novel catalyst for the oxidative cyanation of aromatic and cyclic tertiary amines to corresponding α-amino nitriles in high to excellent yields by using hydrogen peroxide and molecular oxygen as enviro-economic oxidants. The developed protocol suggested an efficient alternative for recycling carbon dioxide.