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Application

3774222/04, 1984-07-24

(22)

Actual filing date

1984-07-24

(45)

Published

1997-01-10

(72)

Inventor

Sorokin V.I.Shebelov V.A.Rusakova N.I.Granina T.E.Kuznetsova G.V.Nesterova L.M.Fedorova O.N.Udovenko V.A.Promonenkov V.K.Utrobin N.P.Kobzev Ju.P.Strel'Nikov V.M.

METHOD FOR PRODUCTION OF ORTHO-SUBSTITUTED BENZENESULFONYL ISOCYANATES Russian patent published in 1997 - IPC

Abstract SU 1226809 A1

FIELD: organic chemistry. SUBSTANCE: desired compounds having common formula $$$ (where $$$ is Cl, $$$ and $$$ is H, Cl) are prepared by phosgenation of benzenesulfamides having common formula $$$ (where $$$ and $$$ are as mentioned above). The process is carried out in the presence of catalyst and additive which contains isocyanate in the medium of chlorine-containing solvent. Tetramethyl ethylene diamine is used as mentioned above catalyst, phenylisocyanate being used as said additive. EFFECT: increases yield of desired product.

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SU 1 226 809 A1

Authors

Sorokin V.I.

Shebelov V.A.

Rusakova N.I.

Granina T.E.

Kuznetsova G.V.

Nesterova L.M.

Fedorova O.N.

Udovenko V.A.

Promonenkov V.K.

Utrobin N.P.

Kobzev Ju.P.

Strel'Nikov V.M.

Dates

1997-01-10—Published

1984-07-24—Filed

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