Preparation of Ni- or Pt-Containing Cyclic Esters by Oxidative Addition of Cyclic Carboxylic Anhydrides and Their Properties
作者:Kenji Sano、Takakazu Yamamoto、Akio Yamamoto
DOI:10.1246/bcsj.57.2741
日期:1984.10
Metal containing cyclic ester complexes, (Remark: Graphics omitted.)(L=1,2-bis(diphenylphosphino)ethane (dpe) or 2,2′-bipyridine (bpy); R1, R2=H or CH3) and (Remark: Graphics omitted.) (L=tricyclohexylphosphine (PCy3) or dpe; n=1 or 2), have been prepared by oxidative addition of cyclic carboxylic anhydrides to zero-valent metal complexes. These complexes have been characterized by elemental analysis
含金属环酯络合物,(备注:图示省略。)(L=1,2-双(二苯基膦基)乙烷(dpe)或2,2'-联吡啶(bpy);R1、R2=H或CH3)和(备注:图形省略。)(L=三环己基膦(PCy3)或dpe;n=1或2),是通过将环状羧酸酐氧化加成到零价金属络合物来制备的。这些配合物已通过元素分析和光谱学(IR 以及 1H-、13C1H}-和 31P1H}-NMR)和化学反应性进行表征。琥珀酸酐氧化加成到 Ni(bpy)(cod)(cod=1,5-环辛二烯)的速率由二阶速率方程表示,R=k[Ni(bpy)(cod)][琥珀酸酐]和 k 的温度依赖性给出了 68 kJ mol-1 的活化能。