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2 072 356

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IPC

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Application

94031604/04, 1994-08-29

(22)

Actual filing date

1994-08-29

(45)

Published

1997-01-27

(72)

Inventor

Levdanskij V.A.Polezhaeva N.I.Kuznetsov B.N.

(73)

Holder

Institut Khimii Prirodnogo Organicheskogo Syr'Ja So Ran

METHOD FOR PRODUCTION OF DERIVATIVES OF 5,6-PHTHALYL PHENOTHIAZINE Russian patent published in 1997 - IPC

Abstract RU 2072356 C1

FIELD: organic synthesis. SUBSTANCE: desired derivatives have formula where X is hydrogen, halide or lower alkyl, Y is hydrogen or hydroxy group. 1-(triazene-N-sulfonate)-2-phenyl thioanthraquinone is used as reagent 1. Reaction is carried out at 150-180 C in ethylene glycol or in glycerine in the presence of alkali. EFFECT: improves efficiency of the method. 2 tbl

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RU 2 072 356 C1

Authors

Levdanskij V.A.

Polezhaeva N.I.

Kuznetsov B.N.

Dates

1997-01-27—Published

1994-08-29—Filed

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