Well-Defined Highly Active Heterogeneous Catalyst System for the Coupling Reactions of Carbon Dioxide and Epoxides

Well-Defined Highly Active Heterogeneous Catalyst System for the Coupling Reactions of Carbon Dioxide and Epoxides

The poly(4-vinylpyridine)-supported zinc halide catalysts, prepared from a reaction of ZnX2 and poly(4-vinylpyridine), exhibit high selectivity and activity for the coupling reaction of CO2 and ethylene oxide or propylene oxide. Solid NMR characterization of the poly(4-vinylpyridine)-supported ZnBr2...

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Bibliographic Details
Published in:Journal of catalysis Vol. 205; no. 1; pp. 226 - 229
Main Authors: Kim, Hoon Sik, Kim, Jai Jun, Kwon, Hyeck Nam, Chung, Moon Jo, Lee, Byung Gwon, Jang, Ho Gyeom
Format: Journal Article
Language:English
Published: Amsterdam Elsevier Inc 01-01-2002
Elsevier
Subjects:
carbon dioxide
Catalysis
Catalysts: preparations and properties
Chemistry
cyclic carbonate
epoxide
Exact sciences and technology
General and physical chemistry
heterogeneous catalyst
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
zinc complex
heterogeneous catalyst
carbon dioxide
cyclic carbonate
zinc complex
epoxide
Pyridine(vinyl) polymer
Differential scanning calorimetry
Binary compound
Zinc Iodides
Transition metal Compounds
Zinc Bromides
Carbon dioxide
Thermogravimetry
Zinc Chlorides
Three membered ring
NMR spectrometry
Oxygen heterocycle
Supported catalyst
Heterogeneous catalysis
Zinc Halides
Epoxide
Oxirane(methyl)
Ethylene oxide
Coupling
Catalyst activity
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Description
Summary:The poly(4-vinylpyridine)-supported zinc halide catalysts, prepared from a reaction of ZnX2 and poly(4-vinylpyridine), exhibit high selectivity and activity for the coupling reaction of CO2 and ethylene oxide or propylene oxide. Solid NMR characterization of the poly(4-vinylpyridine)-supported ZnBr2 catalyst and its reaction product with propylene oxide and/or CO2 show that a pyridinium-alkoxy ion-bridged zinc bromide complex is functioning as an active species, such as in the homogeneous catalysis with L2ZnBr2 (L = pyridine or methyl-substituted pyridine).
ISSN:0021-9517
1090-2694
DOI:10.1006/jcat.2001.3444