METHOD FOR PREPARING DERIVATIVES OF 3-PHENYLSULFONYLANTHRA-[1,9-cd]-ISOXAZOLE-6-ONE Russian patent published in 2006 - IPC C07D261/20 

Abstract RU 2276144 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for preparing derivatives of 3-phenylsulfonylanthra-[1,9-cd]-isoxazole-6-one of the general formula: wherein X means hydrogen, halogen atom or lower alkyl; Y means hydrogen atom or hydroxy-group. Method involves heating derivative of 2-phenylsulfonylanthraquinone in organic solvent wherein 1-(triazene-N-sulfonate)-2-phenylsulfonylanthraquinone of the general formula: wherein X and Y have above given values is used as derivative of 2-phenylsulfonylanthraquinone that is boiled in alkali alcoholic solution followed by neutralization with acetic acid. Invention provides simplifying technology of the process and expanding assortment of the end products.

EFFECT: improved preparing method.

2 tbl, 3 ex

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RU 2 276 144 C1

Authors

Levdanskij Vladimir Aleksandrovich

Polezhaeva Natal'Ja Ivanovna

Vinokurova Ljudmila Nikolaevna

Polezhaeva Irina Viktorovna

Levdanskij Aleksandr Vladimirovich

Dates

2006-05-10Published

2005-02-07Filed