84760-10-1Relevant academic research and scientific papers
2-ketosulfonamides and process for their preparation
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, (2008/06/13)
The invention relates to new 2-ketosulfonamides of the formula STR1 and to a process for their preparation, wherein the 3-amino-2-sulfamoylalk-2-enoic acid esters of the formula STR2 obtained by reacting 3-aminoalk-2-enoic acid esters of the formula STR3 with amidosulfonyl chlorides of the formula X-SO2 -NH-R2, are subjected to hydrolysis and decarboxylation. The invention also relates to the 3-amino-2-sulfamoylalk-2-enoic acid esters which can be isolated as intermediates.
2-Ketosulfonamides
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, (2008/06/13)
The invention relates to new 2-ketosulfonamides of the general formula STR1 and to a process for their preparation, which process comprises oxidizing compounds of the general formula with manganese dioxide in a readily volatile, oxidation-stable organic solvent, preferably acetone or acetonitrile.
