80998-66-9

Upstream product

• 6292-58-6 2,5-dimethylbenzenesulphonamide 
• 609-54-1 2,5-dimethylbenzenesulfonic acid 
• 19040-62-1 2,5-dimethylbenzenesulfonyl chloride 
• 20532-05-2 4-methyl-3-sulfamoylbenzoic acid 

Downstream Products

• 80998-67-0 1,4-dimethyl 2-sulfamoylbenzene-1,4-dicarboxylate 

Relevant academic research and scientific papers

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);

Agricultural sulfonamides

This invention relates to novel N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted by two carboxyl radicals. The compounds have utility as herbicides.