Cu(II) Catalyzed Imine C–H Functionalization Leading to Synthesis of 2,5-Substituted 1,3,4-Oxadiazoles
作者:Srimanta Guin、Tuhin Ghosh、Saroj Kumar Rout、Arghya Banerjee、Bhisma K. Patel
DOI:10.1021/ol202409r
日期:2011.11.18
symmetrical and unsymmetrical 2,5-disubstituted [1,3,4]-oxadiazoles has been accomplished through an imine C–H functionalization of N-arylidenearoylhydrazide using a catalytic quantity of Cu(OTf)2. This is the first example of amidic oxygen functioning as a nucleophile in a Cu-catalyzed oxidative coupling of an imine C–H bond. These reactions can be performed in air atmosphere and moisture making it exceptionally