PROCESS FOR PREPARING 1,1,3-TRIOXO-1,2-BENZOTHIAZOLE-6-CARBOXAMIDE

PROCESS FOR PREPARING 1,1,3-TRIOXO-1,2-BENZOTHIAZOLE-6-CARBOXAMIDE

A process for preparing, 1,1,3-trioxo-1,2-benzothiazole-6-carboxamide of formula (I) comprising: (a) oxidizing 2,5-dimethyl-benzenesulfonamide of formula (II) in the presence of an oxidizing agent to receive 2-sulfamoyl-terephthalic acid of formula (III); (b) converting the formed 2-sulfamoyl-tereph...

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Hauptverfasser: PILLAI, Bijukumar, Gopinathan, MIRILASHVILI, Sima, MANNAM, Sreedevi, BARDA, Yaniv, HAMIRANI, Bhavinkumar, P, MEKA, Bhoopal
Format: Patent
Sprache:eng ; fre ; ger
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CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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creator PILLAI, Bijukumar, Gopinathan
MIRILASHVILI, Sima
MANNAM, Sreedevi
BARDA, Yaniv
HAMIRANI, Bhavinkumar, P
MEKA, Bhoopal
description A process for preparing, 1,1,3-trioxo-1,2-benzothiazole-6-carboxamide of formula (I) comprising: (a) oxidizing 2,5-dimethyl-benzenesulfonamide of formula (II) in the presence of an oxidizing agent to receive 2-sulfamoyl-terephthalic acid of formula (III); (b) converting the formed 2-sulfamoyl-terephthalic acid of formula (III) to receive 2-sulfonoyl-terephthalic acid derivative of formula (IV); and (c) reacting the resulting 2-sulfamoyl-terephthalic acid derivative of formula (IV) with ammonia (NH3) or ammonium containing-salt; wherein R represents OR′ or CI and R′ represents a branched or non-branched C1-C12 alkyl.
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subjects CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
title PROCESS FOR PREPARING 1,1,3-TRIOXO-1,2-BENZOTHIAZOLE-6-CARBOXAMIDE
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