Cuprous chloride promoted coupling reaction of diethoxyphosphinyldifluoromethylcadmium reagent with aryl iodides: A practical and convenient preparation of α,α-difluoro benzylic phosphonates
作者:Weiming Qiu、Donald J. Burton
DOI:10.1016/j.jfluchem.2013.04.008
日期:2013.11
cross couplingreaction of diethoxyphosphinyldifluoromethylcadmium reagent with aryl iodides was promoted by CuCl under mild conditions to give α,α-difluorobenzylicphosphonates in good yields. A variety of functional groups, including halides, phosphonate, nitro, ketone, carboxylic acid and ester in aryl iodides, could be tolerated. This methodology has been successfully applied to prepare α,α-difluoro
The nickel-catalyzed cross-coupling of bromodifluoromethylphosphonates with arylboron reagents was developed with a 1,10-phenanthroline-type ligand. In this process, functionalized and heterocycle-containing boroxines were found to be suitable partners, and the catalytic modification of biologically active molecules, such as fenofibrate and indomethacin, was also successfully achieved. Furthermore