Oxidative carbonylation of phenol to diphenyl carbonate catalyzed by Pd–pyridyl complexes tethered on polymer support

Autor:	Michihiko Asai, Kazuhiko Takeuchi, Hirotoshi Ishii, Mitsuru Ueda
Rok vydání:	2001
Předmět:	chemistry.chemical_classification Chemistry Process Chemistry and Technology Halide General Chemistry Polymer Photochemistry Catalysis chemistry.chemical_compound Diphenyl carbonate Phenol Ammonium Polystyrene Carbon monoxide
Zdroj:	Catalysis Communications. 2:145-150
ISSN:	1566-7367
DOI:	10.1016/s1566-7367(01)00023-1
Popis:	Various Pd–pyridyl complexes tethered on polystyrene were investigated as novel immobilized Pd catalysts for the direct synthesis of diphenyl carbonate (DPC) by oxidative carbonylation using phenol, carbon monoxide, and air. These Pd catalysts showed reasonably high efficiencies in the absence of ammonium halide. The best efficiencies were obtained by using Pd–biquinoline complex tethered on polystyrene 1 , Pd–bipyridyl complex tethered on polystyrene 3 , and Pd–methylpyridyl complex tethered on polystyrene 7 where TOF reached about 4 (mol-DPC/mol-Pd h), respectively. Their efficiencies were higher than those of the Pd complex catalyst tethered on conventional polymer support and PdBr 2 under similar conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::071f1198983cd212deec14d0c2851304 https://doi.org/10.1016/s1566-7367(01)00023-1 Zobrazit plný text záznamu Full Text from ScienceDirect