Citation: Wei Wei, Yan Hua Wang, Jing Yang Jiang, Zi Lin Jin. A novel phosphate ligand used for the Rh-catalyzed hydroformylation of cyclohexene in a thermoregulated PEG biphase system[J]. Chinese Chemical Letters, ;2007, 18(8): 933-935. doi: 10.1016/j.cclet.2007.05.044 shu

A novel phosphate ligand used for the Rh-catalyzed hydroformylation of cyclohexene in a thermoregulated PEG biphase system

State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China

Received Date: 12 March 2007

Fund Project: Financial support from Fok Ying Tung Education Foundation (No. 91071) and the National Natural Science Foundation of China (No. 20376013) are gratefully acknowledged.

A novel phosphate ligand, tri-(methoxyl polyethylene glycol)-phosphate (TMPGPA), has been synthesized and used in the Rhcatalyzed hydroformylation of cyclohexene in a thermoregulated PEG biphase system. Under the optimized conditions, pressure=5 Mpa (H₂:CO=1:1), P/Rh=10 (molar ratio), reaction time=4 h and temperature=120℃, the conversion of cyclohexene and the yield of aldehyde are 99%. The catalyst retained in PEG phase can be easily separated from the organic phase containing product by simple phase separation and reused ten times without obvious loss in activity.
- Thermoregulated PEG biphase system,
- Hydroformylation,
- Phosphate ligand,
- Rhodium,
- Cyclohexene
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