4.7 Article

First microwave-accelerated hiyama coupling of aryl- and vinylsiloxane derivatives: Clean cross-coupling of aryl chlorides within minutes

Journal

ADVANCED SYNTHESIS & CATALYSIS
Volume 347, Issue 2-3, Pages 303-307

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200404196

Keywords

cross-coupling; homogeneous catalysis; microwave heating; palladium; phosphane ligands

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The first microwave-accelerated Hiyama cross-coupling reactions are reported. The reactions of aryl bromides and activated aryl chlorides with PhSi(OMe)(3) [or C2H3Si(OMe)(3)] are complete within minutes using a modified catalyst system that can be prepared from commercially available reagents in situ. The microwave-accelerated reactions proceed under relatively mild conditions (110-115degreesC).

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