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Application filed by Ленинградский химико-фармацевтический институтfiledCriticalЛенинградский химико-фармацевтический институт
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FIELD: organic chemistry. SUBSTANCE: product - 2-substituted 6-methoxy-1,3-oxazine-4-ones of the general formulawhere R - 2-furyl (1), p-tolyl (2), p-methoxyphenyl (3), and p-chlorophenyl (4). Empirical formula, yield (%), and m. p. (C) for compound (1) are: CHNO,, 82, 148-150; for compound (2): CHNO,, 51, 133-134; for compound (3): CHNO,, 52, 120-123; for compound (4): CHClNO,, 85.5, 140-142. Reagent 1: R - CONCO. Reagent 2: methoxyacetylene. Reaction conditions: in the medium of dichloroethane or benzene at 5-10 C. EFFECT: improved method of synthesis. 2 tbl
2 - [(Dihydro) pyrazolyl-3'-oxylmethylene] anilides, their use, and an agent containing the compound and intermediates for the preparation of the compound
1, 2-bis-(1-glycidylbenzimidazole-2-ylthio)-ethane as cohardening agent of epoxy resins and 1,2-bis-(benzimidazole-2-ylthio)-ethane as an intermediate compound for synthesis of 1, 2-bis-(1-glycidylbenzimidazole-2-ylthio)-ethane as cohardening agent of epoxy resins