Metal-Catalyzed Carbocyclization by Intramolecular Reaction of Allylsilanes and Allylstannanes with Alkynes
作者:Carolina Fernández-Rivas、María Méndez、Antonio M. Echavarren
DOI:10.1021/ja993524b
日期:2000.2.1
Reaction of Allylsilanes and Allylstannanes with Alkynes Catalyzed by Electrophilic Late Transition Metal Chlorides
作者:Carolina Fernández-Rivas、María Méndez、Cristina Nieto-Oberhuber、Antonio M. Echavarren
DOI:10.1021/jo025812n
日期:2002.7.1
The intramolecular reaction of allylsilanes and allylstannanes with alkynes proceeds catalytically in the presence of Pt(II), Pd(II), Ru(II), and Au(III) chlorides. Although more limited, AgOTf also catalyzes the cyclization. Usually, PtCl2 as the catalyst in methanol or acetone gives the best results. The reaction proceeds by exo attack of the allyl nucleophile on the alkyne to form five- or six-membered