74328-43-1

Basic information

• Product Name: 3-methyl-1-(p-tolylsulphonylimino)thiochroman-4-one
• Synonyms: 3-methyl-1-(p-tolylsulphonylimino)thiochroman-4-one
• CAS NO: 74328-43-1
• Molecular Weight: 347.459
• Mol File: 74328-43-1.mol

Chemical Properties

• CAS DataBase Reference: 3-methyl-1-(p-tolylsulphonylimino)thiochroman-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 3-methyl-1-(p-tolylsulphonylimino)thiochroman-4-one(74328-43-1)
• EPA Substance Registry System: 3-methyl-1-(p-tolylsulphonylimino)thiochroman-4-one(74328-43-1)

Safety Data

• Hazardous Substances Data: 74328-43-1(Hazardous Substances Data)

Upstream product

• 771-17-5 3-methyl-2,3-dihydro-4H-thiochromen-4-one 
• 127-65-1 chloroamine-T 

Downstream Products

• 76664-73-8 4-Methyl-N-[2-(2-methyl-acryloyl)-phenylsulfanyl]-benzenesulfonamide 
• 74328-44-2 4-methyl-2-p-tolylsulphonyl-2,3-dihydro-1,2-benzothiazepin-5(4H)-one 

Relevant articles and documents

SULFILIMINES IN ORGANIC SYNTHESES: NEW ENTRIES INTO TETRAHYDRO-1,2-BENZOTHIAZEPINE AND 1,2-BENZISOTHIAZOLE SYSTEMS

Novel ring transformations of thiochroman-4-ones and benzothiophen-3(2H)-ones to tetrahydro-1,2-benzothiazepin-5-ones and 1,2-benzisothiazoles via sulfilimine intermediates are described.

Conversions of Thiochroman-4-ones into 1,2-Benzothiazepine, Benzothiophen, and 1,2-Benzisothiazole Systems via Sulphimide Intermediates

Reaction of thiochroman-4-ones (1a-g) with chloramine-T gave the corresponding N-tosylsulphimides (2a-g) and sulphoxides (5a-g).The N-tosylsulphimides (2a-d), on reaction with triethylamine in chloroform, gave 2-tosyl-2,3-dihydro-1,2-benzothiazepin-5(4H)-