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1 422 601

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A1

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IPC

(21) (22)

Application

4004545/04, 1986-01-07

(22)

Actual filing date

1986-01-07

(45)

Published

1995-05-20

(72)

Inventor

Magid A.B.Antipanova V.E.Valitov R.B.

METHOD OF ARYLSULFONYLISOCYANATE SYNTHESIS Russian patent published in 1995 - IPC

Abstract SU 1422601 A1

FIELD: chemical technology of organic compounds. SUBSTANCE: synthesis is carried out from corresponding arylsulfonamide with phosgene in the presence of aniline and polyamine of the formula NH2(CH2CH2NH)nH, where n = 1-4, at 90-145 C in the medium of aromatic chlorohydrocarbon. Method ensures to decrease sulfochloride content up to 0.7-1.2 wt.-% as compared with that of 9-11.1 wt. -% in the known one. EFFECT: enhanced quality of the end products. 3 tbl

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SU 1 422 601 A1

Authors

Magid A.B.

Antipanova V.E.

Valitov R.B.

Dates

1995-05-20—Published

1986-01-07—Filed

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