Synthesis of propylene carbonate from carbon dioxide using trans-dichlorotetrapyridineru- thenium(II) as catalyst

✍ Scribed by Zhanwei Bu; Zhiqiang Wang; Lirong Yang; Shaokui Cao

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 147 KB
• Volume: 24
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/aoc.1708

✦ Synopsis

Abstract

trans‐Dichlorotetrapyridineruthenium(II) [trans‐RuCl~2~(py)~4~] was synthesized and the structure was determined by single crystal X‐ray crystallography. Highly efficient formation of propylene carbonate (PC) from carbon dioxide and propylene oxide was achieved by using a catalyst system composed of trans‐RuCl~2~(py)~4~ and hexadecyl trimethyl ammonium bromide under mild conditions (4h, 80 °C, 3.0 MPa). PC was obtained in nearly 100% selectivity without the formation of a polymer. The catalyst could be recycled constantly many times without any significant loss of its catalytic activity. On the basis of the results, a mechanism for the reaction was proposed. Copyright © 2010 European Peptide Society and John Wiley & Sons, Ltd.