作者:Yingzhong Chen、H.V.Rasika Dias、Carl J. Lovely
DOI:10.1016/s0040-4039(02)02864-2
日期:2003.2
The preparation of a number of dienylimidazole via chemoselective metal-halogen exchange and their utility in ring-closing metathesis is described. Essentially all regioisomeric permutations participate in metathesis with the notable exception of 4-vinyl-5-allylimidazoles, provided that the imidazole N3 atom is protonated. (C) 2003 Elsevier Science Ltd. All rights reserved.