Salt of 5-acetyl-2-alkylbenzenesulfonic acid
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United States of America Patent
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Jul 24, 1990
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app pub date -
Mar 24, 1989
filing date -
May 15, 1984
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Abstract
Process for preparing 2-alkyl-5-haloacetylbenzenesulfonamide represented by the general formula (1), ##STR1## (wherein R.sup.1 is an alkyl group having 1 to 5 carbon atoms; and X is a chlorine atom, bromine atom or iodine atom), characterized by halogenating a 5-acetyl-2-alkylbenzenesulfonamide represented by the general formula (2), ##STR2## (wherein R.sup.1 is the same as defined above) in a lower alcohol represented by the general formula (3), (wherein R.sup.4 is an alkyl group having 1 to 5 carbon atoms).
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