ChemInform Abstract: Rearrangement of 3-Ethoxycarbonyl-5-hydroxyimino-2-methyl-4-oxonaphtho[1,2-b]furan and 3-Ethoxycarbonyl-5-hydroxyimino-2-methyl-4-oxo-1-phenylbenzo[g]indole by the Action of Benzenesulfonyl Chloride in an Alkaline Medium

Autor: A. P. Stankyavichus, L. M. M. Stankyavichene, P. B. Terent'ev
Rok vydání: 2010
Předmět:
Zdroj: ChemInform. 31
ISSN: 1522-2667
0931-7597
Popis: The treatment of 3-ethoxycarbonyl-2-methyl-4,5-dioxonaphtho[1,2-b]furan 5-monoximes and also the similarly substituted benzo[g]indole with benzenesulfonyl chloride in an alkaline medium give 5-(2-cyanophenyl)-3-ethoxycarbonyl-2-methylfuran-4-carboxylic and pyrrole-4-carboxylic acids with high yields as a result of a second-order Beckmann rearrangement. The structures of the initial and final compounds were confirmed by analysis of their mass spectra.
Databáze: OpenAIRE