154911-08-7

Basic information

• Product Name: 1-tert-butyl-3-methyl-6-phenylpyrazolo<3,4-d><1,3>thiazin-4-one
• CAS NO: 154911-08-7
• Molecular Weight: 299.396
• Mol File: 154911-08-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 1-tert-butyl-3-methyl-6-phenylpyrazolo<3,4-d><1,3>thiazin-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 1-tert-butyl-3-methyl-6-phenylpyrazolo<3,4-d><1,3>thiazin-4-one(154911-08-7)
• EPA Substance Registry System: 1-tert-butyl-3-methyl-6-phenylpyrazolo<3,4-d><1,3>thiazin-4-one(154911-08-7)

Safety Data

• Hazardous Substances Data: 154911-08-7(Hazardous Substances Data)

Upstream product

• 154910-89-1 N-(1-tert-butyl-3-methylpyrazol-5-yl)benzamide 
• 141459-53-2 1-tert-butyl-3-methyl-1H-pyrazol-5-amine 
• 98-88-4 benzoyl chloride 
• 154910-98-2 N-(1-tert-butyl-3-methylpyrazol-5-yl)thiobenzamide 
• 503-38-8 trichloromethyl chloroformate 

Relevant articles and documents

AN EFFICIENT PROCEDURE FOR THE SYNTHESIS OF PYRAZOLOTHIAZIN-4-ONES

Trichloromethyl chloroformate reacts with N-(1-alkyl/aryl-5-pyrazolyl)thiocarboxamides (2a-j) to give pyrazolothiazin-4-ones (3) while it reacts with N-(3-methyl-5-pyrazolyl)thiobenzamide (2m) to give the pyrazolothiadiazine-4-one (4).Heating under reflux in formic acid of homologues (3g-i) bearing a tert-butyl group linked to pyrazole N-1 atom afforded the dealkylated derivatives (3k-m).