Mode of formation of quinoxaline versus 2[1H]-quinoxalinone rings from dehydro-D-erythorbic acid.

Abstract

The mode of formation of the quinoxaline versus 2[1H]-quinoxalinone rings by the reaction of o-diamines with dehydro-D-erythorbic acid has been investigated. The study was carried out by using one and two molar equivalents of 1,2-diamino-4,5-dimethylbenzene (3b) to give 6,7-dimethyl-3-(1-oxo-D-erythro-2,3,4-trihydroxybutyl)-2[1H]-quino xalinone (4b) and 2… (More)

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