Hydroformylation of Styrene Catalyzed by [RhH<SUB>2</SUB>(Ph<SUB>2</SUB>N<SUB>3</SUB>) (PPh<SUB>3</SUB>)<SUB>2</SUB>] in Dimethyl Sulfoxide

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  • KAMEDA Noriyuki
    Department of Chemistry, College of Science and Technology, Nihon University
  • YONEDA Tetsuya
    Department of Chemistry, College of Science and Technology, Nihon University

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Other Title
  • ジメチルスルホキシド中[RhH<SUB>2</SUB>(Ph<SUB>2</SUB>N<SUB>3</SUB>)(PPh<SUB>3</SUB>)<SUB>2</SUB>]触媒によるスチレンのヒドロホルミル化反応
  • ジメチルスルホキシド中[RhH2(Ph2N3)(PPh3)2]触媒によるスチレンのヒドロホルミル化反応
  • ジメチル スルホキシド チュウ RhH2 Ph2N3 PPh3 2 ショクバイ ニ ヨル スチレン ノ ヒドロホルミルカ ハンノウ
  • Hydroformylation of Styrene Catalyzed by (RhH2(Ph2N3)(PPh3)2) in Dimethyl Sulfoxide.

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Abstract

The homogeneous hydroformylation of styrene catalyzed by dihydridorhodium complex [RhH2 (Ph2N3) (PPh3)2] with synthesis gas (CO/H2O = 1/1) was carried out in dimethyl sulfoxide. The synthesis gas pressure was in the range from 9.8×104 to 9.8×105 Pa, and the temperature was changed from 303to 333 K. The products were 2- and 3-phenylpropanal, 2-phenylpropanal being more abundant. Increase in the pressure of synthesis gas and addition of 1, 3-diphenyltriazene or triphenylphosphine increased the yield of 2-phenylpropanal and decreased 3-phenylpropanal. When the reaction temperature was raised, 2-phenylpropanal yield reached maximum at 323 K, and then it decreased gradually. On the other hand, the formation rate of 3-phenylpropanal was accelerated by elevating the reaction temperature. The mechanism of hydroformylation reaction was discussed.

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1999 (7), 457-461, 1999-07-10

    The Chemical Society of Japan

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