METHOD OF 7,8-PHTALOYLACRIDONE DERIVATIVES PRODUCTION Russian patent published in 2008 - IPC C07D221/18 

Abstract RU 2332407 C1

FIELD: chemistry.

SUBSTANCE: invention relates to the new method of 7,8-phtaloylacrodone derivatives production, which are used in dye-making and dye-using industries for dying various types of fibres. The method of production of 7,8-phtaloylacrodone derivatives of general formula , wherein X - hydrogen, halogen or lower alkyl through boiling of 2-aroylantrahynone derivative in organic solvent, which is different in that 1-(triazen-N-sulfonate)-2-aroylantrahynone of general formula used as 2-aroylantrahynone derivative, wherein X has the indicated values, and which is boiled with alkali in ethylene glycol or diethylene glycol is described.

EFFECT: simplification of 7,8-phtaloylacrodone derivatives production process.

2 tbl, 3 ex

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RU 2 332 407 C1

Authors

Levdanskij Vladimir Aleksandrovich

Polezhaeva Natal'Ja Ivanovna

Dates

2008-08-27Published

2007-05-21Filed