19195-29-0

Upstream product

• 137-07-5 2-amino-benzenethiol 
• 99-73-0 para-bromophenacyl bromide 
• 1155-00-6 bis(2-nitrophenyl)disulfide 

Downstream Products

• 23416-82-2 2-benzothiazol-2-ylmethylene-3-(4-bromo-phenyl)-2H-benzo[1,4]thiazine 
• 34370-74-6 (Z)-3,3'-bis-(4-bromo-phenyl)-[2,2']bi[benzo[1,4]thiazinylidene] 
• 34370-75-7 (E)-3,3'-bis-(4-bromo-phenyl)-[2,2']bi[benzo[1,4]thiazinylidene] 
• 30430-04-7 3,3'-bis(4-bromophenyl)-2H,2'H-2,2'-bibenzo[b][1,4]thiazine 

Relevant academic research and scientific papers

Bioglycerol-based sulfonic acid-functionalized carbon catalyst as an efficient and reusable catalyst for one-pot synthesis of 3- substituted-2 h -1,4-benzothiazines

A simple and efficient synthetic protocol has been developed for the synthesis of 3-substituted-2H-1,4-benzothiazines by using bioglycerol-based sulfonic acid-functionalized carbon catalyst, devoid of corrosive acidic and basic reagents. The developed met

Practical and efficient synthesis of 3-aryl-2H-benzo[1,4]thiazine derivatives catalyzed by KHSO4

KHSO4 efficiently catalyzes the condensation of o-aminothiophenols and 2-bromo-1-aryl-ethanones to yield 3-aryl-2H-benzo[1,4] thiazines in good yields.

Conversion of bis(o-nitrophenyl)disulfides to heterocycles containing sulfur and nitrogen by the action of samarium diiodide

Treatment of bis(o-nitrophenyl)disulfides 1 with SmI2 led to simultaneous reduction of nitro groups and reductive cleavage of S-S bonds as well as the formation of the active intermediates 2. The intermediates 2 reacted smoothly with aldehydes