Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2009, Issue 34, Pages 6034-6042Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.200900951
Keywords
Alcohols; Olefination; Nickel; Nanoparticles; Wittig reactions
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Funding
- Spanish Ministerio de Educacion y Ciencia (MEC) [CTQ2007-65218, Consolider Ingenio 2010-CSD2007-00006]
- MEC
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Nickel nanoparticles were found to promote the Wittig-type olefination of primary alcohols with phosphorus ylides. The latter can be prepared from the corresponding phosphonium salts with nBuLi or in situ generated with lithium metal. The methodology is especially efficient for the synthesis of stilbenes and is applied in the absence of any additive as a hydrogen acceptor. A new approach to the synthesis of poly-methoxylated and polyhydroxylated stilbenes, including resveratrol, DMU-212 and analogues, is presented. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
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