Expeditious Synthesis of Imidazole- and Pyrrole-Fused Benzodiazocines
作者:Amita Mishra、Sanjay Batra
DOI:10.1002/ejoc.201000355
日期:2010.9
A straightforward strategy for the synthesis of imidazole-fused benzodiazocine from 1-(2-nitrophenyl)-1H-imidazole-2-carbaldehyde via Morita–Baylis–Hillman reaction followed by reductive intramolecular cyclization is described. Alternatively the Horner–Wadsworth–Emmons reaction of this substrate with triethyl phosphonoacetate yielded (E)-ethyl 3-(1-(2-nitrophenyl)-1H-imidazol-2-yl)acrylate which upon