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Phosphonate‐Based Hybrid Materials for Catalysis? Supported Rhodium/2,2′‐Bipyridine Complexes as Reduction Catalysts Under Hydrogen Pressure
Author(s) -
Maillet Céline,
Janvier Pascal,
Bertrand MarieJo,
Praveen Thoniyot,
Bujoli Bruno
Publication year - 2002
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/1099-0690(200205)2002:10<1685::aid-ejoc1685>3.0.co;2-i
Subject(s) - chemistry , rhodium , catalysis , phosphonate , homogeneous catalysis , bipyridine , covalent bond , methanol , heterogeneous catalysis , organometallic chemistry , hydrogen , organic chemistry , hydrogen bond , polymer chemistry , homogeneous , inorganic chemistry , molecule , crystal structure , physics , thermodynamics
Supported organometallic catalysts based on covalently immobilized rhodium/2,2′‐bipyridine complexes are compared to the parent homogeneous system for the hydrogenation of ketones and carbon‐carbon multiple bonds under hydrogen pressure. In alkaline methanol, the supported catalyst is more active for the reduction of C=C and C≡C bonds than for the hydrogenation of keto groups; this is in contrast with the analogous system in a homogeneous medium for which the opposite trend is observed. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)