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摘要
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.
- 出版日期2002-5
