873694-88-3

Upstream product

• 873695-06-8 N-(4-bromobut-3-yn-1-yl)-4-methylbenzenesulfonamide 
• 17102-64-6 Sorbyl alcohol 
• 338463-00-6 N-(tert-butoxycarbonyl)-N-but-3-ynyl-4-methylbenzenesulfonamide 
• 873695-05-7 tert-butyl (4-bromobut-3-yn-1-yl)(tosyl)carbamate 

Relevant academic research and scientific papers

Rhodium-catalyzed intramolecular [4 + 2] cycloadditions of alkynyl halides

(Chemical Equation Presented) Cationic rhodium(I)-catalyzed intramolecular [4 + 2] cycloadditions of diene-tethered alkynyl halides were found to occur in good yields (70-87%). The halide moiety is compatible with the cycloaddition reactions, and no oxidative insertion to the alkynyl halide was observed. The halogen-containing cycloadducts could be transformed into a variety of products that are difficult or impossible to obtain via direct cycloaddition.