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Synlett 1996; 1996(7): 633-634
DOI: 10.1055/s-1996-5547
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Improved Reactivity of Diiodosamarium by Catalysis with Transition Metal Salts

Fouzia Machrouhi, Béatrice Hamann, Jean-Louis Namy1 , Henri B. Kagan2
  • 1Laboratoire de Synthèse Asymétrique, URA CNRS n° 1497, Institut de Chimie Moléculaire d’Orsay, Université Paris-Sud, 91405 Orsay-cedex, France, Fax (33) 1 69 41 13 03, E-mail: jelonamy@icmo.u-psdu.fr
  • 2Laboratoire de Synthèse Asymétrique, URA CNRS n° 1497, Institut de Chimie Moléculaire d’Orsay, Université Paris-Sud, 91405 Orsay-cedex, France, Fax (33) 1 69 41 13 03, E-mail: kagan@icmo.u-psud.fr
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Publication History

Publication Date:
31 December 2000 (online)

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Some reactions of diiodosamarium are greatly accelerated by addition of catalytic amounts (1%) of various transition metal halides. The most useful catalyst is NiI2. Many Barbier reactions can be performed in a few minutes at room temperature even in the absence of HMPA. The catalyst modifies the reaction profile of SmI2, for example intermolecular reactions of organic halides on esters are very fast giving tertiary alcohols.

samarium diiodide - Barbier reaction - nickel diiodide - esters - lactones

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