Zhang Fenbao, Kirby Christopher W, Hairsine Douglas W, Jennings Michael C, Puddephatt Richard J
Department of Chemistry, The University of Western Ontario, London, Ontario, Canada N6A 5B7.
J Am Chem Soc. 2005 Oct 19;127(41):14196-7. doi: 10.1021/ja055436z.
The reaction of [PtMe2(NN)] and B(C6F5)3/H2O in CF3CH2OH with arenes Ar-H gives [PtAr{HOB(C6F5)3}(LL)] if the bis(pyridyl) ligand NN forms a six-membered, but not five-membered, chelate ring; methyl-substituted arenes give selectivity for metalation of meta > para > ortho, but methoxy-substituted arenes give ortho > meta, para.
如果双（吡啶基）配体NN形成六元而非五元螯合环，那么在CF3CH2OH中，[PtMe2(NN)]与B(C6F5)3/H2O及芳烃Ar-H反应会生成[PtAr{HOB(C6F5)3}(LL)]；甲基取代的芳烃在金属化时选择性为间位>对位>邻位，但甲氧基取代的芳烃选择性为邻位>间位>对位。
