214532-11-3

Upstream product

• 106904-10-3 2-chloro-4-(methylsulphonyl)benzoyl chloride 
• 214532-10-2 1-Methyl-2,2-dioxo-2,3-dihydro-1H-2λ⁶-thieno[3,2-c][1,2]thiazin-4-one 
• 214532-29-3 methyl 3-(bis(methylsulfonyl)amino)-2-thiophenecarboxylate 
• 214532-30-6 methyl 3-(N-methylmethylsulfonamido)thiophene-2-carboxylate 
• 79128-71-5 methyl 3-(methylsulfonamido)thiophene-2-carboxylate 
• 22288-78-4 Methyl 3-aminothiophene-2-carboxylate 

Relevant academic research and scientific papers

Novel heterocycles. Synthesis of 2,3-dihydro-6-methyl-2-phenyl-4H,6H- pyranol[3,2-c][2,1]benzothiazin-4-one 5,5-dioxide and related compounds

The reaction of 2-chloro-4-(methylsulfonyl)benzoyl chloride (5) with 1- methyl-1H-2,1-benzothiazin-4-(3H)-one 2,2-dioxide (4) gave the O-benzoyl compound, 1-methyl-2,2-dioxido-1H-2,1-benzothiazin-4-yl 2-chloro-4- (methylsulfonyl)benzoate (6), which rearra