Tetrahedron Letters p. 3155 - 3158 (1983)
Update date:2022-07-29
Topics:
Rajappa, S.
Sreenivasan, R.
Rane, A. V.
Oxidation of N',N''-biscarbomethoxy-N-(4-acylamino)phenylguanidines with lead tetraacetate has given novel 5-acylamino-benzimidazole-2-carbamates by a process involving regioselective cyclization of intermediate quinoneimides.
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