Citation: Zhi Jiang Ji, Jing Yang Jiang, Yan Hua Wang. A novel thermoregulated phosphine ligand used for the Rh-catalyzed hydroformylation of mixed C_11-12 olefins in aqueous/organic biphasic system[J]. Chinese Chemical Letters, ;2010, 21(5): 515-518. doi: 10.1016/j.cclet.2010.01.020 shu

A novel thermoregulated phosphine ligand used for the Rh-catalyzed hydroformylation of mixed C_11-12 olefins in aqueous/organic biphasic system

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

Received Date: 17 August 2009

Fund Project: The authors are grateful to the financial support from the Program for New Century Excellent Talents in University (No. NCET-07-0138) and the Science and Technology Project in Universities from the Education Department of Liaoning Province (No. 2008T233).

A novel thermoregulated phosphine ligand Ph₂P(CH₂CH₂O)_nCH₃ (n=22) was synthesized and used for the Rh-catalyzed hydroformylation of mixed C_11-12olefins in aqueous/organic biphasie system. Under the optimized conditions, pressure=5 Mpa (H₂:CO=1:1), phosphine/Rh=13 (molar ratio), reaction time=6 h and temperature=130℃, the conversion of C_11-12 olefins and the yield of aldehyde are 99% and 94%, respectively. The catalyst retained in aqueous phase can be easily separated from the product-containing organic phase by simple phase separation and the catalytic activity remains almost constant after four consecutive cycles.
- Thermoregulated phosphine ligand,
- Mixed C_11-12 olefins,
- Hydroformylation,
- Rhodium
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