1298087-08-7

Upstream product

• 636-98-6 p-nitrobenzene iodide 
• 55022-46-3 4-methyl-N-prop-2-ynylbenzenesulfonamide 
• 18303-04-3 N-[(tert-butoxy)carbonyl]-4-methylbenzenesulfonamide 
• 189031-66-1 N-(tert-butoxycarbonyl)-4-methyl-N-prop-2-ynylbenzenesulfonamide 

Downstream Products

• 1240184-20-6 (Z)-8-(4-nitrophenyl)-5-tosyl-5-azaoct-2-en-7-yn-1-ol 
• 1609632-81-6 ethyl 3,3-bis(N-(3-(4-nitrophenyl)prop-2-ynyl)-4-methylphenylsulfonamido)acrylate 
• 1418736-91-0 C₂₃H₂₂N₂O₅S 

Relevant academic research and scientific papers

Gallium(III)-promoted halocyclizations of 1,6-diynes

Cyclization of 1,6-diynes promoted by stoichiometric Ga(III) halides produces vinyl halides in good to excellent yields. Under acidic conditions, initially formed iodocyclization products undergo in situ Friedel-Crafts cyclizations, giving access to iodoi

Access to cyclobutene-fused azepines through au-catalyzed cycloisomerization of stable alkyne tethered ketene N,N -acetals

A base promoted reaction between N-protected propargyl amines and 3-bromopropiolate readily provides an array of novel stable alkyne-tethered ketene N,N-acetals in good yields. A wide range of structurally complex cyclobutene-fused azepine heterocycles are synthesized through the gold-catalyzed intramolecular cycloisomerization of ketene N,N-acetals for the first time. A plausible reaction pathway is deduced on the basis of the 1H NMR studies.