ca. 48% 1‐hexene) formed the major product of ethylene oligomerization along with minor quantities of butenes (C4); high overall activities of up to 1.33 × 106 g·mol–1 (Ni)h–1 (for mesityl‐containing Ni4) were achieved at 30 oCand 10 atm C2H4. By comparison with MAO as co‐catalyst, Ni1 – Ni6 exhibited lower activities but displayed a specificity towards ethylene dimerization (C4: 64–99% 1‐butene).
6个实例被2-乙酰氧基甲基取代的5,6,7-三氢
喹啉基-8-亚烷基胺-
氯化镍(II),[2-(CH 2 OC(O)Me)-8- N(Ar)} C 9 H 8 N] NiCl 2(Ar = 2,6-Me 2 C 6 H 3 Ni1,2,6 -Et 2 C 6 H 3 Ni2,2,6 -i-Pr 2 C 6 H 3 Ni3,2,4, 6-Me 3 C 6 H 2 Ni4,2,6 -Et 2 –4-MeC 6 H 2 Ni5,2,4,6 -t-Bu 3 C6 H 2 Ni6)是通过2-(羟甲基)-6,7-二氢
喹啉-8(5H)-1与二
氯化镍六
水合物,相应的
苯胺和
乙酸的单锅反应制备的。所有的络合物都通过元素分析和红外光谱进行了表征,而双核Ni2和单核Ni3 ·OH 2也成为了单晶X射线衍射研究的主题。在两个结构中,乙酰氧基甲基均未配位。激活Ni1 - Ni6与
MMAO一起,己烯(C6:约48%1-