| 摘要 |
FIELD: chemistry.SUBSTANCE: present invention relates to a novel method of producing dithiine-tetracarboximides of general formulawherein Rand Rassume values given above, characterised by that at the first step monoamides of succinic acid of formulawherein R denotes Ror R, react with excess thionyl chloride, optionally in a diluent medium, followed by removal of excess thionyl chloride, and the obtained product mixture, at the second step in the medium of an organic solvent, is converted into dithiine-tetracarboximides of formula (I). The invention also relates to intermediate compounds of formulaand a method for production thereof.EFFECT: novel method of producing dithiine-tetracarboximides.9 cl, 18 ex |
