METHOD OF PRODUCING 1,3,7,9-TETRANITROPHENOTHIAZINE-5,5-DIOXIDE Russian patent published in 2016 - IPC C07D279/34

Abstract SU 1841204 A1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing 1,3,7,9-tetranitrophenothiazine-5,5-dioxide by nitration of phenothiazine with nitric acid, wherein nitration process is carried out successively with 89-91 %, 98-99 % nitric acid and 102-104 % oleum, followed by separating end product using known techniques.

EFFECT: technical result is simple process of producing 1,3,7,9-tetranitrophenothiazine-5,5-dioxide, high output and purity of product.

1 cl, 1 ex

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SU 1 841 204 A1

Authors

Abdrakhmanov Ildus Shafikovich

Tikhomirova Nina Pavlovna

Dubenkova Nina Alekseevna

Dates

2016-10-20—Published

1968-03-22—Filed