Oxidative carbonylation of phenol to diphenyl carbonate catalyzed by Pd–carbene complexes
✍ Scribed by Ken-ichi Okuyama; Jun-ichi Sugiyama; Ritsuko Nagahata; Michihiko Asai; Mitsuru Ueda; Kazuhiko Takeuchi
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 106 KB
- Volume
- 203
- Category
- Article
- ISSN
- 1381-1169
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## Abstract Heterogeneous palladium catalysts anchored on functionalized silica were prepared by sol–gel methods and their catalytic properties for the oxidative carbonylation of phenol to diphenyl carbonate (DPC) were investigated. The catalysts were characterized by means of IR, XPS, EA and BET.
Oxidative carbonylation of phenol to form diphenyl carbonate DPC was investigated in the multi-step electron transfer system containing homogeneous or heterogeneous palladium as the main component. Carbon-supported Pd catalyst showed a Ž . better DPC yield than the best homogeneous system with Pd OA