Yuan, Kedong published the artcileArylation of gem-difluoroalkenes using a Pd/Cu Co-catalytic system that avoids β-fluoride elimination, Application In Synthesis of 1205-17-0, the main research area is difluorobenzyl methylalkene preparation; difluoroalkene arylsulfonyl chloride palladium copper catalyst diastereoselective arylation.
PdII/CuI co-catalyze an arylation reaction of gem-difluoroalkenes using arylsulfonyl chlorides to deliver α,α-difluorobenzyl products. The reaction proceeded through a β,β-difluoroalkyl-Pd intermediate that typically underwent unimol. β-F elimination to deliver monofluorinated alkene products in a net C-F functionalization reaction. However to avoid β-F elimination, the β,β-difluoroalkyl-Pd intermediate were offered, an alternate low-energy route involving β-H elimination to ultimately deliver difluorinated products in a net arylation/isomerization sequence. Overall, this reaction enabled exploration of new reactivities of unstable fluorinated alkyl-metal species, while also providing new opportunities for transforming readily available fluorinated alkenes into more elaborate substructures.
Chemical Science published new progress about Arylation catalysts, stereoselective. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Application In Synthesis of 1205-17-0.
Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem