A novel synthesis of 5-acylaminobenzimidazole-2-carbamates : intramolecular regioselective addition to quinone-imides.
作者:S. Rajappa、R. Sreenivasan、A.V. Rane
DOI:10.1016/s0040-4039(00)88121-6
日期:1983.1
Oxidation of N′,N″ -biscarbomethoxy-N-(4-acylamino) phenylguanidines with lead tetraacetate has given novel 5-acylaminobenzimidazole-2-carbamates by a process involving regioselective cyclization of intermediate quinoneimides.