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SYNTHESIS OF NITROMETHYL-, N-METHYLINDOLYL-, OR N-METHYLINDOLYLNITROMETHYL- SUBSTITUTED 1,4-BENZOTHIAZIN(DIAZIN)ONES AND 3-METHYL-1,4-BENZOXAZINONES FROM ALKYL 3-NITROACRYLATES

Василий Васильевич Пелипко, Руслан Измаилович Байчурин, Роман Петрович Кустин, Александр Павлович Виноградов, Сергей Валентинович Макаренко
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Abstract


The reactions of alkyl 3-nitroacrylates and ethyl 2-(1-methyl-1H-indol-3-yl)-3-nitroacrylate with о-aminothiophenol, о-aminophenol, о-phenylenediamine, and their substituted analogs were used for the preparation of  2-(nitromethyl)-2H-1,4-benzothiazin-3(4H)-one, 2-(1-methyl-1H-indol-3-yl)-2-(nitromethyl)-2H-1,4-benzothiazin-3(4H)-one, 3-methyl-2H-1,4-benzoxazin-2-ones, and 3-(1-methyl-1H-indol-3-yl)quinoxalin-2(1H)-ones that were structurally characterized.

Keywords


о-aminophenol, о-aminothiophenol, 1,4-benzothiazinone, 1,4-benzoxazinone, nitroacrylate, о-phenylenediamine, quinoxalinone, Michael reaction.

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