Catalytic Conversion of Ethanol to n-Butanol Using Ruthenium P鈥揘 Ligand Complexes
详细信息 查看全文
- 作者：Richard L. Wingad ; Paul J. Gates ; Steven T. G. Street ; Duncan F. Wass
- 刊名：ACS Catalysis
- 出版年：2015
- 出版时间：October 2, 2015
- 年：2015
- 卷：5
- 期：10
- 页码：5822-5826
- 全文大小：307K
- ISSN：2155-5435
文摘
We report several ruthenium catalysts incorporating mixed donor phosphine-amine ligands for the upgrade of ethanol to the advanced biofuel n-butanol, which show high selectivity (鈮?0%) at good (up to 31%) conversion. In situ formation of catalysts from mixtures of [RuCl2(畏6-p-cymene)]2 and 2-(diphenylphosphino)ethylamine (1) shows enhanced activity at initial water concentrations higher than those of our previously reported diphosphine systems. Preliminary mechanistic studies (electrospray ionization mass spectrometry and nuclear magnetic resonance spectroscopy) suggest the possibility of ligand-assisted proton transfer in some derivatives.