Highly β-(<i>E</i>)-Selective Hydrosilylation of Terminal and Internal Alkynes Catalyzed by a (IPr)Pt(diene) Complex
作者:Guillaume Berthon-Gelloz、Jean-Marc Schumers、Guillaume De Bo、István E. Markó
DOI:10.1021/jo800411e
日期:2008.6.1
The regioselectivehydrosilylation of terminal and internalalkynes catalyzed by the novel (IPr)Pt(AE) (7) (IPr = bis(2,6-diisopropylphenyl)imidazo-2-ylidene, AE = allyl ether) complex is presented. The (IPr)Pt(AE) catalyst displays enhanced activity and regioselectivity for the hydrosilylation of terminal and internalalkynes with low catalyst loading (0.1 to 0.05 mol %) when compared to the parent