Bi(NO3)3 • 5H2O mediated synthesis of 4,4′ -diaminotriarylmethane leuco malachite compounds under solvent-free conditions

Abstract

In this report, we described the synthesis and characterization of a variety of diaminotriarylmethane derivatives with dimethylamino functional groups. These compounds were synthesized by the tandem regio-selective electrophilic aromatic substitution reaction of N,N-dimethylaniline with aryl aldehydes to form the corresponding diaminotriarylmethane compounds. In our strategy, Bi(NO3)3 was used as a catalyst under solvent free conditions to afford the desired products in good to excellent yields. © Versita Warsaw and Springer-Verlag Berlin Heidelberg 2009.