A novel catalyst for transesterification of dimethyl carbonate with phenol to diphenyl carbonate: samarium trifluoromethanesulfonate

✍ Scribed by Mei Fuming; Li Guangxing; Nie Jin; Xu Huibi

• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 39 KB
• Volume: 184
• Category: Article
• ISSN: 1381-1169
• DOI: 10.1016/s1381-1169(02)00013-4

✦ Synopsis

Samarium trifluoromethanesulfonate (Sm(OTf) 3 ) was found to be a novel catalyst for synthesis of diphenyl carbonate (DPC) by transesterification of dimethyl carbonate (DMC) with phenol. The best result was obtained by using Sm(OTf) 3 catalyst. The TON reached 21.8 mol DPC/mol Sm when the reaction was carried out at 190 • C with the molar ratio of phenol-to-DMC 4:1 for 12 h. This catalyst could work in aqueous media and in air, and proved reusable.