期刊
TETRAHEDRON
卷 65, 期 36, 页码 7440-7448出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.07.016
关键词
Palladium catalysis; Tetratertiary phosphines; Pentatertiary phosphine; Ozonolysis; Fulvenes
资金
- Institut de Recherche Servier [Fr 92150]
- CNRS
- Ministere de l'Enseignement Superieur et de la Recherche
A new strategy to prepare tetradentate or pentadentate diphenylphosphine ligands has been explored from Diels-Alder adducts of fulvenes and maleic anhydride. A tetradentate phosphine ligand, bearing a side chain allowing the formation of a bond with polystyrene resin, has been prepared in seven steps from cyclopentadiene. The cis,cis,cis-1-cyclohexylidene-2,3,4,5-tetrakis(diphenylphosphinomethyl)cyclopentane (Cyclo-Tedicyp) in combination with [PdCl(C3H5)](2) led to an efficient catalyst for the Heck, Suzuki and Sonogashira coupling reactions. (C) 2009 Elsevier Ltd. All rights reserved.
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