N-heterocyclic carbene-Pd(II)-1-methylimidazole complex catalyzed C–H bond benzylation of (benzo)oxazoles with benzyl chlorides
作者:Ya-Yun Ji、Yu Zhang、Yuan-Yuan Hu、Li-Xiong Shao
DOI:10.1016/j.tet.2015.07.030
日期:2015.9
The first example of phosphine-free, NHC-Pd(II) complex catalyzed direct C-H bond benzylation of (benzo)oxazoles with benzyl chlorides was reported in this paper. Under the suitable conditions, all reactions worked well enough to give the desired C2-benzylated products in good to almost quantitative yields, providing a facile and straight pathway for the C-H bond benzylation of (benzo)oxazoles within short time. (C) 2015 Elsevier Ltd. All rights reserved.