141522-44-3

Upstream product

• 132629-79-9 (E)-3-[2-(2-Methyl-allyloxy)-phenyl]-1-phenyl-propenone 
• 644-78-0 2-hydroxychalcone 
• 141522-36-3 (E)-1-[2-(2-Methyl-allyloxy)-phenyl]-3-phenyl-propenone 

Relevant academic research and scientific papers

α,β-Unsaturated Thiocarbonyl S-Sulfides (Thiosulfines). Their Generation, Intramolecular Trapping by a Non-activated C=C Dipolarophile via Cycloaddition and trans-Sulfurization Ability

α,β-Unsaturated thiocarbonyl S-sulfides (thiosulfines) 10 were generated by sulfurization of the thioketones 5 and were intramolecularly trapped as 1,5-dipoles giving 8, whereas, in the presence of Et3N, they were transformed by trans-sulfurization via 1,5 cyclization into the thioketones 13 capable of undergoing the intramolecular hetero-Diels-Alder reaction to give cycloadducts 9.

Intramolecular Hetero Diels-Alder Reaction of 1-Thiabutadienes, 1-Aryl-3-propene-1-thiones and 2--3,4-dihydronaphthalene-1(2H)-thiones

α,β-Unsaturated thioketones 4, 5 and 9, which are formed in situ by thionation of the corresponding ketones, undergo intramolecular hetero Diels-Alder reactions with high regio- and diastereo-selectivities (trans/cis) to give dihydrothiopyran-fused cycloadducts 6, 7 and 10.