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Comparison of the Activity of a Rhodium‐Biphephos Catalyst in Thermomorphic Solvent Mixtures and Microemulsions
Author(s) -
Rost Anke,
Brunsch Yvonne,
Behr Arno,
Schomäcker Reinhard
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400072
Subject(s) - hydroformylation , microemulsion , catalysis , rhodium , chemistry , solvent , substrate (aquarium) , ligand (biochemistry) , chemical engineering , homogeneous catalysis , organic chemistry , pulmonary surfactant , biochemistry , oceanography , receptor , engineering , geology
Tunable solvent systems provide optimal reaction conditions for homogeneous catalysis as well as appropriate conditions for separating the product from the catalyst via temperature switches. Two tunable solvent systems are presented based on different thermodynamic concepts, namely thermomorphic multicomponent solvent systems and dispersions of immiscible liquids, stabilized by nonionic surfactants as microemulsions. Both systems were applied for the regioselective hydroformylation of the model substrate 1‐dodecene with a Rhodium/ligand catalyst system. The accessibility of the catalyst for the reactants was compared between the molecularly dispersed mixtures and the colloidally dispersed microemulsion systems which are heterogeneous on the microscopic level.