Preparation of 6-substituted-2 (1H) - quinoxalinone

摘要

General formula [II]In the formula, X represents a halogen atom, an alkyl group having 1 to 5 trihalogenically substituted carbon atoms, and a nitro group. A general formula characterized by the reaction of 6-substituted - 2 (1H) - quinoxalinone-n-oxide with alkali sulfides and / or alkali sulfides in the presence of 1 to 20 fold mole alkali(x is the same as above. The production of 6-substituted-2 (1H) - quinoxalinone.