Synthesis, structure and reactivity of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole
作者:Amanda E. Sparke、Christopher M. Fisher、Ryan E. Mewis、Stephen J. Archibald
DOI:10.1016/j.tetlet.2010.07.010
日期:2010.9
synthesis of 1-(4-nitrobenzyl)-2-chloromethyl benzimidazole, which undergoes a nucleophilic substitution with pyridine in the absence of additional base, is reported. The key steps are the reaction of 1,2-phenylenediamine to give exclusively the mono-substituted product and the avoidance of minor by-products via the use of glycolic acid for the cyclisation step. The X-ray structures of 1-(4-nitrobenzyl)-2-chloromethyl