期刊
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
卷 7, 期 6, 页码 536-543出版社
TAYLOR & FRANCIS LTD
DOI: 10.1016/j.stam.2006.02.019
关键词
biaryl; cross-coupling reaction; palladium; silicon
Readily accessible and highly stable aryl[2-(hydroxymethyl)phenyl]dimethylsilanes cross-couple with various aryl iodides under mild reaction conditions employing K2CO3 as a base at 50 degrees C. Use of CuI as a co-catalyst is essential for the success of the present coupling reaction, which tolerates a diverse range of functional groups to afford a wide variety of biaryl products. Intramolecular coordination of a proximal hydroxyl group is considered to efficiently form pentacoordinated silicates having a transferable aryl group at an axial position and facilitate transmetalation from silicon to copper and then to palladium. (c) 2006 NIMS and Elsevier Ltd. All rights reserved.
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