A Room Temperature Kharasch Reaction Catalyzed by Pd(0) in a Heterogeneous Aqueous System
作者:Dai Motoda、Hidenori Kinoshita、Hiroshi Shinokubo、Koichiro Oshima
DOI:10.1002/1615-4169(200206)344:3/4<261::aid-adsc261>3.0.co;2-7
日期:2002.6
The palladium-catalyzed Kharasch reaction of alkenes and alkynes is enhanced by the use of a heterogeneous aqueous system, without the use of hydrophilic co-solvents or phase transfer catalysts. The Pd(0)-catalyzed reaction of terminal alkenes with bromotrichloromethane in water goes to completion within 2 h at room temperature, whereas no reaction occurs in benzene otherwise under the same conditions. The Pd(0) catalyst in aqueous me la a so effects the radical addition of iodoperfluoroalkanes toward terminal alkenes and alkynes at room temperature.