Synlett 2009(9): 1466-1470  
DOI: 10.1055/s-0029-1217176
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York

Phosphine-Catalyzed Synthesis of Unsymmetrical 1,3-Bis- and Trisphosphorus Ligands

Yi Lin, Dan Bernardi, Eric Doris, Frédéric Taran*
CEA, iBiTecS, Service de Chimie Bioorganique et de Marquage, Gif sur Yvette 91191, France
Fax: +33(1)69087991; e-Mail: frederic.taran@cea.fr;
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Publication History

Received 22 January 2009
Publication Date:
13 May 2009 (online)

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Abstract

Phosphine-catalyzed umpolung γ-additions of phosphorus pronucleophiles on alkynes bearing phosphinoyl (P=O) or phosphinothioyl (P=S) moieties have been explored. The reaction leads to bis- or trisphosphorus subunits that can be useful for the preparation of chelating ligands.

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