83718-10-9

Upstream product

• 98-59-9 p-toluenesulfonyl chloride 
• 30416-54-7 N-p-Toluenesulfonyliminoquinolinium Ylide 
• 937-31-5 (4-Nitrophenyl)acetylene 

Relevant academic research and scientific papers

Cycloaddition Reactions of N-p-Toluenesulfonylimino Derivatives of Quinoline and Isoquinoline. A Route to Pyrazoloquinolines and Pyrazoloisoquinolines

N-p-Toluenesulfonylimino ylides of quinoline and isoquinoline give cycloadducts with electrophilic acetylenes at 105 deg C.The adducts are spontaneously aromatized under the conditions of their formation by elimination of p-toluenesulfinic acid to give py