acetylenes bearing a variety of substituents with perfluoroalkyl iodides in the presence of a catalytic amount of triethylborane provides the corresponding perfluoroalkenes in good to excellent yields. The addition of perfluoroalkyl iodides to olefins is also described.
Addition reactions of F-alkyl iodides to carbon-carbon double bonds promoted by metallic tin(0)-metal salt systems
作者:Manabu Kuroboshi、Takashi Ishihara
DOI:10.1016/s0022-1139(00)82786-4
日期:1988.5
-alkyl iodides readily reacted with a variety of alkenes in methanol at room temperature under the influence of metallic tin(0)-silver(I) acetate of metallic tin(0)-copper(I) chloride to afford the corresponding addition products, - alkylated iodides, in good to excellent yields. This addition reaction was also promoted by the use of a metallic tin(0)- aluminium(0) reagent, though gentle heating was
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.