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Article Dans Une Revue European Journal of Organic Chemistry Année : 2002

Barbier/Grignard-Type Allylation or Benzylation Mediated by the Mischmetall/SmI2(cat.) System

Résumé

Barbier- and Grignard-type allylation and benzylation have been achieved by the use of samarium diiodide in catalytic amounts together with mischmetall (an alloy of the light lanthanides) as a coreductant. Plausible catalytic schemes are proposed. In addition, organocerium and -lanthanum reagents have been obtained from samarium diiodide catalysed reactions between organic halides and cerium or lanthanum metal, giving a new route to organolanthanoid compounds. It also appears that trivalent benzyl and allyl organometallic compounds of cerium and lanthanum are much more stable than the corresponding samarium ones.
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B. Eur. J. Org. Chem. 2002, 2989-2995 Allyl benzyl barbier grignard SmI2.pdf (835.22 Ko) Télécharger le fichier
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hal-02371166 , version 1 (20-10-2021)

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Aurore di Scala, Stefania Garbacia, Florence Hélion, Marie-Isabelle Lannou, Jean-Louis Namy. Barbier/Grignard-Type Allylation or Benzylation Mediated by the Mischmetall/SmI2(cat.) System. European Journal of Organic Chemistry, 2002, 2002 (17), pp.2989-2995. ⟨10.1002/1099-0690(200209)2002:17<2989::AID-EJOC2989>3.0.CO;2-0⟩. ⟨hal-02371166⟩
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