Diphenyl Carbonate Synthesis by Homogeneous Pd Electrocatalyst |
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| Authors: | Ryoichi Kanega Ichiro Yamanaka |
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| Affiliation: | 1. Department of Applied Chemistry, Tokyo Institute of Technology, Tokyo, 152-8552, Japan
2. Department of Chemistry and Materials Science, Tokyo Institute of Technology, Tokyo, 152-8552, Japan
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| Abstract: | Electrochemical carbonylation of phenol with CO to diphenyl carbonate (DPC) using Pd electrocatalyst was studied at P(CO) = 1 atm and room temperature. Electrochemical carbonylation was conducted by galvanostatic electrolysis at 1 mA in electrolyte solutions containing phenol, sodium phenoxide and CH3CN. It was found that electrochemical carbonylation by Pd was promoted by using 1,3-dimesitylimidazol-2-ylidene (IMes) ligand of a N-heterocyclic carbene. The current efficiency of DPC increased more than 3.4 times using the IMes ligand. The maximum current efficiency of DPC formation was 45 %. |
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