3469-15-6

Upstream product

• 6652-29-5 2-phenoxy-1,2-diphenylethanone 
• 525-06-4 diphenyl ketene 
• 67254-57-3 (3,4-dihydro-2,4,6-triphenyl-2H-thiopyran-3-yl)(phenyl)methanethione 
• 71-43-2 benzene 

Downstream Products

• 7476-11-1 1,1,3,3-tetraphenylpropane-2-one 
• 525-06-4 diphenyl ketene 
• 117-34-0 2,2-diphenylacetic acid 

Relevant academic research and scientific papers

Chemistry of α,β-Unsaturated Thione Dimers. 3. Reactions of Thiochalcones and 2-Arylidene-1-thiotetralones with Cumulenes Containing a Carbon-Carbon Double Bond

Thiochalcone, 4'-methoxythiochalcone, 2-benzylidene-1-thiotetralone, 2-(p-methoxybenzylidene)-1-thiotetralone, and 2-(p-chlorobenzylidene)-1-thiotetralone generated by the thermolysis of the corresponding thione dimer reacted as dienes with the cumulenes diphenylketene, fluorenylideneketene N-phenylimine, and tetraphenylallene.The reactions with diphenylketene and the allene gave the six-membered adduct via addition of the thione to the carbon-carbon double bond of the ketene and the allene.The reaction with the ketene imine gave two kinds of six-membered adducts: those via addition to the carbon-carbon double bond and those via addition to the carbon-nitrogen double bond.