Silver-catalyzed [3+2+1] annulation of aryl amidines with benzyl isocyanide

A silver-catalyzed [3+2+1] annulation of amidines with benzyl isocyanide toward 2,4-diaryl-1,3,5-triazines was developed. A variety of symmetrical and unsymmetrical products were obtained in moderate to good yields. This work also features an oxidant-free approach to 2,4-disubstituted triazines. (C) 2017 Elsevier Ltd. All rights reserved.