Author/Authors :
Nishihara، نويسنده , , Yasushi and Inoue، نويسنده , , Eiji and Ogawa، نويسنده , , Daisuke and Okada، نويسنده , , Yoshiaki and Noyori، نويسنده , , Shintaro and Takagi، نويسنده , , Kentaro، نويسنده ,
Abstract :
The palladium-catalyzed cross-coupling reactions of aryl iodides with alkynylsilanes in the presence of a substoichiometric amount (50 mol %) of copper(I) chloride as an activator in DMF under strictly non-basic reaction conditions afford the corresponding unsymmetrical diarylethynes in moderate to excellent yields. A wide range of substrates bearing an electron-donating or an electron-withdrawing substituent on the aromatic ring are compatible.
