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本文研究了PPh_3存在与不存在的情况下,M(CO)_6(M=Cr,Mo,W)与三甲胺氧化物Me_3NO在CH_2Cl_2中的氧原子转移反应动力学。反应速率遵循:r=k[M(CO)_6][Me_3NO],并且,r_W>r_(Mo)>r_(Or)。并根据实验结果提出了反应机理,讨论了溶剂对反应速率的影响。
In this paper, the kinetics of oxygen atom transfer reaction between M (CO) 6 (M = Cr, Mo, W) and trimethylamine oxide Me_3NO in CH_2Cl_2 with or without PPh_3 was studied. The reaction rate follows: r = k [M (CO) _6] [Me_3NO], and r_W> r_ (Mo)> r Or. According to the experimental results, the reaction mechanism was proposed and the influence of solvent on the reaction rate was discussed.