presence of 2. An additional advantage is that the catalyst can be recovered. The synthesis and the characterization of the new dixomolybdenum(VI) complexes and the ligands is described in addition to their catalytic properties. The structure of the new complex bis[N,O-(2′-pyridyl)pentan-3-olato}]dioxomolybdenum(VI) (2) was determined by X-ray diffraction: monoclinic space group P , a = 1444.5(2)
MoO 2 L 2 [L =(2'-
吡啶基)醇]型新的二氧
钼钼(VI)络合物能够显着改变
金属催化的自氧化过程的产物分布。使用催化剂双[ N,O -(2'-
吡啶基)戊基-3-olato}]二氧
钼(VI)(2),在1-
辛烯的自氧化过程中形成
环氧化物作为主要产物。在2的存在下用分子氧(1 bar和100°C)处理1-
辛烯时,产物的选择性从24%(环氧,自氧化)增加到58%。另一个优点是可以回收催化剂。除了其催化性能之外,还描述了新的二
钼(VI)配合物和
配体的合成和表征。通过X射线衍射确定新的复合物bis [ N,O -(2'-
吡啶基)戊丹-3-olato}]二氧
钼(VI)(2)的结构:单斜空间群P ,a = 1444.5( 2)时,b = 1052.4(1)时,ç = 1511.5(2)时,β= 115.86(1)°, 。环氧化数据表明催化剂的
配体球对产物分布的重要影响。现在,我们可以对
金属催化的自氧化反应中的配合物进行微调。