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Synlett 1990; 1990(11): 711-712
DOI: 10.1055/s-1990-21222
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Regioselective Hydroformylation of Styrene and Analogs Catalyzed by [(2R*5R*)-2,5-Bis(diphenylphosphinomethyl)bicyclo[2.2.1]heptane]rhodium(I)

Masahiro Miyazawa* , Satoru Momose, Keiji Yamamoto
  • *Department of Chemical Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152, Japan
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Publication Date:
08 March 2002 (online)

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Diphosphine (2R*5R*)-2,5-bis(diphenylphosphinomethyl)bicyclo[2.2.1]heptane (1) was prepared in nine steps from 2-cyclopentanone. A rhodium cationic complex containing 1 was used as a catalyst for the regioselective hydroformylation of styrene and vinylarenes under mild conditions (carbon monoxide/hydrogen, 20-40 atm, 25-50 °C) with high branch/linear ratios.

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