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United States of America Patent
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app pub date -
Jan 23, 2002
filing date -
Mar 17, 1995
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Abandoned
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Abstract
A process for making a 2-alkylbenzisothiazolinone which comprises reacting a bisamide of formula 1 in water or an organic liquid containing water with a bisulphite or bisulphite release agent to form a Bunte salt and converting the Bunte salt under alkaline conditions to 2-alkyl-BIT. R is alkyl. Preferred substituents R are butyl, hexyl, 2-ethylbutyl and 2-ethylhexyl.
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