52109-56-5

Upstream product

• 1075-06-5 2,2-dihydroxy-1-phenyl-ethanone 
• 70-55-3 toluene-4-sulfonamide 
• 79866-38-9 N-(α-methoxyphenacyl)toluene-p-sulphonamide 

Downstream Products

• 477489-47-7 N-(2-phenylimidazo[1,2-a]pyridine-3-yl)-4-methylbenzenesulfonamide 
• 1605289-77-7 4-methyl-N-(8-methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)benzenesulfonamide 
• 1605289-78-8 4-methyl-N-(6-methyl-2-phenylimidazo[1,2-a]pyridin-3-yl)benzenesulfonamide 
• 1435914-49-0 N-(6-chloro-2-phenylimidazo[1,2-a]pyridine-3-yl)-4-methylbenzenesulfonamide 
• 1605289-79-9 N-(6-bromo-2-phenylimidazo[1,2-a]pyridin-3-yl)-4-methylbenzenesulfonamide 

Relevant academic research and scientific papers

One-pot synthesis of N-(imidazo[1,2-a]pyridin-3-yl)-substituted sulfonamides using catalytic zinc chloride

A one-pot two-step synthesis of N-(imidazo[1,2-a]pyridin-3-yl)sulfonamides from easily available arylglyoxal hydrates, 2-aminopyridines, and sulfonamides has been developed. The procedure, using zinc chloride as catalyst, is simple and inexpensive. The desired products were obtained in moderate to good yields under the optimized reaction conditions. Copyright

Removal of Toluene-p-sulphonyl Groups from Sulphonamides. Part 4. Synthesis of Phenylglyoxal Imine Monomers

Syntheses and reactions of N-tosylphenacylamines with bases have been systematically examined.Monomeric C-methoxy-imines are available from some of these reactions.C-Methoxyphenacylarylamines, made by two routes, were converted into monomeric imines on treatment with noble-metal catalysts, The boron trifluoride-catalysed reactions of aryl aldehydes with sulphonamides provide a new and convenient route to N-sulphonylarylimines.