期刊
ASIAN JOURNAL OF ORGANIC CHEMISTRY
卷 10, 期 1, 页码 245-250出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ajoc.202000573
关键词
Pincer Ligand; Rhodium Catalysis; Ethylene Glycol; Carbonylation; Hydroformylation
Formaldehyde is an important bulk chemical, and the challenge of producing valuable ethylene glycol directly from it has been a difficult one. Existing systems have low efficiency in generating ethylene glycol, but this new Rh catalyst system allows for efficient synthesis under milder conditions.
Formaldehyde is one of the most important bulk chemicals and is produced on a million tone scale (52 million tons in 2017).([1]) Since the middle of the last century, the challenge has remained to produce the valuable ethylene glycol (EG) directly from the C1 building block formaldehyde in a single step. In the systems reported so far, the reaction conditions were very harsh, often with pressures above 400 bar. However, under milder conditions, the selectivity was on the side of glycol aldehyde (GA) and the hydrogenation product methanol. Only traces of EG could be generated in the presence of a Rh catalyst. Herein, we describe a new Rh catalyst system with pincer ligand, which allows the direct one pot synthesis of EG from easy to handle paraformaldehyde (PFA) at remarkable mild conditions (70 bar, 100 degrees C) and overcomes the aforementioned limitations with yield up to 40%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据