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Chirality control in 2,2'-biphosphole ligand leading to enantiopure Pd complex
Carmen Ortega1, Maryse Gouygou, Jean-Claude Daran
1Laboratoire de Chimie de Coordination, CNRS, 205 route de Narbonne F-31077 Toulouse, France.
Chemical Communications (Cambridge, England)
|June 5, 2003
Abstract:
Asymmetric alkylation of the 3,4-dimethyl-5-phenyl-2,2'-biphospholyl anion with the (2R,4R)-(-)-pentaneditosylate leads to a new chirally flexible 2,2'-biphosphole ligand as a mixture of three diasteroisomers. By complexation with Pd(II), a chirality control occurs to afford enantiopure Pd complex.