91859-89-1

Basic information

• Product Name: 2,1-Benzisothiazol-3(1H)-one, 1-[(4-methylphenyl)sulfonyl]-
• CAS NO: 91859-89-1
• Molecular Formula: C14H11NO3S2
• Molecular Weight: 305.378
• Mol File: 91859-89-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2,1-Benzisothiazol-3(1H)-one, 1-[(4-methylphenyl)sulfonyl]-(CAS DataBase Reference)
• NIST Chemistry Reference: 2,1-Benzisothiazol-3(1H)-one, 1-[(4-methylphenyl)sulfonyl]-(91859-89-1)
• EPA Substance Registry System: 2,1-Benzisothiazol-3(1H)-one, 1-[(4-methylphenyl)sulfonyl]-(91859-89-1)

Safety Data

• Hazardous Substances Data: 91859-89-1(Hazardous Substances Data)

Upstream product

• 40352-87-2 2,1-benzisothiazolin-3(1H)-one 
• 98-59-9 p-toluenesulfonyl chloride 

Downstream Products

• 3808-20-6 4-methyl-N-[2-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)phenyl]benzenesulfonamide 

Relevant articles and documents

2,1-Benzisothiazoles. XIII . Intermediates and Products in the Sulfur Extrusion Reaction of 2,1-Benzisothiazolines-3(1H)-one. A New Synthesis of 11H-Pyridoquinazolin-11-one ("Pyracridone")

Triethyl phosphite abstracts sulfur from 2,1-benzisothiazolin-3(1H)-one (1); a reaction intermediate is the spirocyclic compound 11, and products include the benzoxazine 6 and polyanthraniloyl compounds.In the presence of pyridine, pyracridone (13) is formed.The ketene-imine 9 is probably not an intermediate in these reactions.The reactions of other nucleophiles with 1 and with its N-methyl derivative 15, have been examined.