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Article Dans Une Revue Catalysis Today Année : 2013

Chiral supported ionic liquid phase (CSILP) catalysts for greener asymmetric hydrogenation processes

Résumé

Chiral supported ionic liquid phase (CSILP) catalysts were prepared by physical adsorption (within highly porous carbons or mesoporous silica) of Ir, Ru and Rh complexes as IrCl(COD)-(S,S)-BDPP, [IrCl-(S)-BINAP]2, RuCl(p-cymene)[(S,S)-Ts-DPEN], RuOTf(p-cymene)[(S,S)-Ts-DPEN], [Rh(COD)(S,S)-DIPAMP][BF4], and [Rh(COD)(R,R)-Me-DuPHOS][BF4]. For the syntheses of CSILP catalysts [EMIM][NTf2],[BMIM][BF4] and [BMIM][PF6] ionic liquids were used. Comparative homogeneous and heterogeneous experiments were carried out using the asymmetric hydrogenation of double C N and C C bonds in trimethylindolenine, 2-methylquinoline and dimethylitaconate, respectively. The conversion and enantioselectivity was found to depend on the nature of the complex (metal and ligand), the immobilization method used, nature of the ionic liquid, nature of the support and the experimental conditions.

Domaines

Catalyse Matériaux

Dates et versions

hal-00761166 , version 1 (05-12-2012)

Identifiants

Citer

Iunia Podolean, Christopher Hardacre, Peter Goodrich, Nicolas Brun, Rénal Backov, et al.. Chiral supported ionic liquid phase (CSILP) catalysts for greener asymmetric hydrogenation processes. Catalysis Today, 2013, 200, pp. 63-73. ⟨10.1016/j.cattod.2012.06.020⟩. ⟨hal-00761166⟩

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