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Concomitant Monoreduction and Hydrogenation of Unsaturated Cyclic Imides to Lactams Catalyzed by Ruthenium Compounds

Authors

  • Rimane Aoun Dr.,

    1. Institut de Chimie de Rennes, UMR 6509: CNRS-Université de Rennes, Organométalliques et Catalyse, Campus de Beaulieu-35042 Rennes Cedex, France, Fax: (+33) 2-2323-6939
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  • Jean-Luc Renaud Dr.,

    1. Institut de Chimie de Rennes, UMR 6509: CNRS-Université de Rennes, Organométalliques et Catalyse, Campus de Beaulieu-35042 Rennes Cedex, France, Fax: (+33) 2-2323-6939
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  • Pierre H. Dixneuf Prof.,

    1. Institut de Chimie de Rennes, UMR 6509: CNRS-Université de Rennes, Organométalliques et Catalyse, Campus de Beaulieu-35042 Rennes Cedex, France, Fax: (+33) 2-2323-6939
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  • Christian Bruneau Dr.

    1. Institut de Chimie de Rennes, UMR 6509: CNRS-Université de Rennes, Organométalliques et Catalyse, Campus de Beaulieu-35042 Rennes Cedex, France, Fax: (+33) 2-2323-6939
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  • The authors thank ORIL Industrie for financial support.

Abstract

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One for two: [Ru4H6(p-cymene)4]Cl2 and [RuCl2(p-cymene)]2, [Ru], are efficient catalyst precursors for the selective transformation of cyclic imides into saturated lactams (see scheme). The catalytic systems operate with the same reagent (H2) to perform two transformations, namely, monoreduction of the carbonyl groups and hydrogenation of C[DOUBLE BOND]C bonds, with the release only of water, which is the solvent of the reaction.

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