作者:Michael S. South、Terri L. Jakuboski、Mark D. Westmeyer、Daniel R. Dukesherer
DOI:10.1016/0040-4039(96)00020-2
日期:1996.2
The novelcyclizationreactions of the in-situ generated 1-carboxyethyl-3-phenyl-4,4-dichloroazodiene were found to give N-aminopyrroles and pyridazines when combined with acyclic enamines, Table 1. However, reactions with cyclic enamines gave the N-aminopyrroles, pyridazines, a dihydropyridazine as products as well as the non-cyclized enamine intermediates, Table 2. The enamines 10c and 11c could