PROCESS FOR MAKING BENZISOTHIAZOLIN-3-ONES

• Main Authors: COX, BRIAN, GEOFFREY, GRAY, THOMAS
• Format: Patent
• Language: English; French
• Published: 02.07.1998
• Edition: 6
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

A process for making a 1,2-benzisothiazolin-3-one by cycling a bisamide precursor under alkaline conditions in the presence of oxygen or an oxygen-release compound in the presence of a nitrogen, sulphur or phosphorus nucleophile. Preferred nucleophiles are ammonia, primary, secondary and tertiary am...