28731-96-6

Basic information

• Product Name: ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate
• Synonyms: ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate
• CAS NO: 28731-96-6
• Molecular Formula: C₁₁H₁₁NO₃S
• Molecular Weight: 237.27494
• Mol File: 28731-96-6.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate(CAS DataBase Reference)
• NIST Chemistry Reference: ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate(28731-96-6)
• EPA Substance Registry System: ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate(28731-96-6)

Safety Data

• Hazardous Substances Data: 28731-96-6(Hazardous Substances Data)

Upstream product

• 685-87-0 Diethyl 2-bromomalonate 
• 137-07-5 2-amino-benzenethiol 
• 1141-88-4 2-Aminophenyl disulfide 
• 76542-06-8 o,o'-Dithiobis(phenylcarbamoylessigsaeure-ethylester) 
• 36239-09-5 ethyl chlorocarbonylacetate 
• 14064-10-9 diethyl 2-chloromalonate 

Downstream Products

• 1262547-19-2 1-phenyl-2-(1,4-benzothiazin-3-on-2-yl)-5-mercapto-1,3,4-triazole 
• 1262547-18-1 2-(1,4-benzothiazin-3-on-2-yl)-5-anilino-1,3,4-thiadiazole 
• 129338-93-8 [2-(3,4-Dimethoxy-benzyl)-3-oxo-2,3-dihydro-benzo[1,4]thiazin-4-yl]-acetic acid 
• 129338-92-7 [2-(4-Chloro-benzyl)-3-oxo-2,3-dihydro-benzo[1,4]thiazin-4-yl]-acetic acid 
• 129339-36-2 2-(3,4-dimethoxybenzyl)-2H-1,4-benzothiazin-3(4H)-one 
• 129339-34-0 2-(4-chlorobenzyl)-2H-1,4-benzothiazin-3(4H)-one 
• 129339-33-9 2-(3-Chloro-benzyl)-4H-benzo[1,4]thiazin-3-one 
• 5325-20-2 2H-1,4-benzothiazin-3-one 
• 105125-93-7 2-[4-(4-fluorophenyl)-1-piperazinyl]methyl-2H-1,4-benzothiazin-3(4H)-one 
• 139331-42-3 2-chloromethyl-2H-1,4-benzothiazin-3(4H)-one 
• 127018-37-5 2-(4-Chloro-benzyl)-3-oxo-3,4-dihydro-2H-benzo[1,4]thiazine-2-carboxylic acid ethyl ester 
• 127018-46-6 2-(3-Chloro-benzyl)-3-oxo-3,4-dihydro-2H-benzo[1,4]thiazine-2-carboxylic acid ethyl ester 
• 127018-61-5 ethyl 2-(3,4-dimethoxybenzyl)-3,4-dihydro-3-oxo-2H-1,4-benzothiazine-2-carboxylate 

Relevant articles and documents

Cyclization of thiohydrazonate esters and azo-hydrazone tautomerism of 2-arylhydrazono-3-oxo-1,4-benzothiazines

Reaction of ethyl arylhydrazonochloroacetates (1) with 2-aminothiophenol (2) in ethanol in the presence of triethylamine yielded the respective ethyl thiohydrazonate esters (3). Similarly, methyl arylhydrazonochloroacetates (6) gave the corresponding meth

Note on an Unexpected Reaction of a Disulfide

Diethyl o,o'-dithiobis(phenylcarbamoylacetate) (1) is converted into ethyl 3-oxo-3,4-dihydro-2H-1,4-benzothiazine-2-carboxylate (2) by sodium hydrogen carbonate in aqueous alcoholic solution.