A novel thermoregulated phosphine ligand used for the Rh-catalyzed hydroformylation of mixed C_(11-12) olefins in aqueous/organic biphasic system  

作　　者：Zhi Jiang Ji,Jing Yang Jiang,Yan Hua Wang State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116012,China 

出　　处：《Chinese Chemical Letters》2010年第5期515-518,共4页中国化学快报（英文版）

基　　金：the financial support from the Program for New Century Excellent Talents in University (No.NCET-07-0138);the Science and Technology Project in Universities from the Education Department of Liaoning Province(No.2008T233).

摘　　要：A novel thermoregulated phosphine ligand PhP(CHCHO)CH(n=22) was synthesized and used for the Rh-catalyzed hydroformylation of mixed Colefins in aqueous/organic biphasic system.Under the optimized conditions,pressure =5 MPa (H:CO=1:1),phosphine/Rh =13(molar ratio),reaction time =6 h and temperature =130℃,the conversion of Colefins 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.A novel thermoregulated phosphine ligand Ph₂P（CH₂CH₂O）_nCH₃（n=22） was synthesized and used for the Rh-catalyzed hydroformylation of mixed C_11-12 olefins in aqueous/organic biphasic 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.

关 键 词：Thermoregulated phosphine ligand Mixed C_11-12 olefins HYDROFORMYLATION RHODIUM 

分 类 号：O621.13[理学—有机化学]