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2 298 548

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IPC

C07C309/22(2006-01-01)

C07C309/59(2006-01-01)

(21) (22)

Application

2006111148/04, 2006-04-05

(24)

Start date

2006-04-05

(22)

Actual filing date

2006-04-05

(45)

Published

2007-05-10

(72)

Inventor

Tarasov Aleksej Valer'EvichMoskvichev Jurij AleksandrovichPisarev Petr KonstantinovichNikiforova Anastasija Ardal'Onovna

(73)

Holder

Jaroslavskij Gosudarstvennyj Tekhnicheskij Universitet

METHOD FOR PREPARING ARYLCHLOROSULFONYL BENZAMIDES FROM BENZOIC ACIDS Russian patent published in 2007 - IPC C07C309/22 C07C309/59

Abstract RU 2298548 C1

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to a method for synthesis of arylchlorosulfonyl benzamides used in synthesis of different derivatives of sulfoacids. Invention describes a method for synthesis of different arylchlorosulfonyl benzamides wherein benzoic acids are sulfochlorinated with chlorosulfonic acid, amidated with ammonia or other amine successively and prepared sulfamides are subjected for interaction with chlorosulfonic acid by the reaction of intramolecular re-amidation. Proposed method provides synthesis of arylchlorosulfonyl benzamides with aliphatic amine fragments and electron-acceptor substitutes in aromatic ring by the simplified technology.

EFFECT: improved and simplified method of synthesis.

4 ex

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RU 2 298 548 C1

Authors

Tarasov Aleksej Valer'Evich

Moskvichev Jurij Aleksandrovich

Pisarev Petr Konstantinovich

Nikiforova Anastasija Ardal'Onovna

Dates

2007-05-10—Published

2006-04-05—Filed