The hypervalentiodine/HF reagent consisting of PhIO and HF·py was found to be effective for fluorination of functionalized aromatic olefins bearing synthetically important carbonyl and hydroxyl groups. Fluorination of 1,3-diphenyl-2-propen-1-one with PhIO/HF·py reagent in CH2Cl2 at room temperature gave 3,3-difluoro-1,2-diphenyl-1-propanone in high yield. Other α-aryl-α,β-unsaturated ketones underwent
Palladium-Catalyzed Oxidative Carbonylative Coupling Reactions of Arylboronic Acids with Styrenes to Chalcones under Mild Aerobic Conditions
作者:Xiao-Feng Wu、Helfried Neumann、Matthias Beller
DOI:10.1002/asia.201100630
日期:2012.2.6
Do the coupling: A palladium‐catalyzed oxidative carbonylative coupling process of arylboronicacid with styrenes to chalcone has been developed. The reactions proceed under mild conditions using air as the terminal oxidant reagent.
A method for producing a fluoromethyl derivative represented by formula (1), the method including step A of reacting an alkene compound represented by formula (2) with a fluorine source represented by formula MF
n
, in the presence of a hypervalent-iodine aromatic compound (1a), or in the presence of an aromatic iodine compound (1b) and an oxidant (A) to fluorinate the alkene compound.