A new thermoregulated PEG biphasic system and its application for hydroformylation of 1-dodecene

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• 作者：Yuchuan Yang ; Jingyang Jiang ; Yanhua Wang ; Chun Liu ; Zilin Jin
• 关键词：Biphasic catalysis ; Hydroformylation ; PEG biphasic system ; Rhodium ; Phosphite ligand
• 刊名：Journal of Molecular Catalysis A ; Chemical
• 出版年：2007
• 期刊代码：57_13811169
• 类别：ch
• 出版时间：18 January 2007
• 卷：261
• 期：2
• 页码：288-292
• 文件大小：346 K

摘要

The development of a new thermoregulated polyethylene glycol (PEG) biphasic system composed of PEG-400/1,4-dioxane/n-heptane is reported in this paper. By applying this system in the hydroformylation of 1-dodecene catalyzed by Rh complexes modified with phosphite ligand containing PEG chains, TMPGP (P[O(CH₂CH₂O)_nCH₃]₃, n = 8), the conversion of 1-dodecene and the yield of aldehydes reached up to 96%and 94%, respectively. The catalyst, after being recycled twenty-three times, showed no appreciable loss of catalyst activity. The average Rh loss was 0.65%each run.