Chinese Journal of Magnetic Resonance ›› 2000, Vol. 17 ›› Issue (4): 297-303.

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THE REACTION MECHANISM OF Pd(OAc)2 WITH PHOSPHINE IN ALKANE CHLORIDE(Ⅱ)

WEI Fengping1, YANG Fan2, HUANG Yongren1, FENG Liangbo3, WANG Hanqing3   

  1. 1. Analytic center, East China Normal University, Shanghai 200062;
    2. Department of Chemistry, East China Normal University, Shanghai 200062;
    3. Lanzhou Institute of Chemical Physics, The Chinese Academia of Sciences, Lanzhou 730000
  • Received:2000-04-10 Revised:2000-05-22 Published:2000-08-05 Online:2018-01-11

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Abstract: The new reaction mechanism of Pd(OAc)2 with dppm, dppe and dppp in different chlorinated alkane solvents was studied by EPR-ST method. The used capturer was PBN. The obtained experimental spectra were simulated. The reaction mechanism is given and discussed. In these processes, the joining of Pd(OAc)2 made the activation energy lower. Some influence factors on the reaction are tentatively discussed. It was shown that the solvents were both reactant and solvents and Pd(OAc)2 was both reactant and initiator. It affected the reaction by its molecular induced action. When compounds that were not the source of free radical were put together, the free radical reaction happened.

Key words: Pd (OAc)2, EPR-ST, Free radical, Chlorinated alkane, Phosphine

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