期刊
CATALYSIS COMMUNICATIONS
卷 79, 期 -, 页码 6-10出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2016.02.013
关键词
Zirconocenes; Single-site catalysts; Coordination oligomerization; Hydrides
资金
- Russian Science Foundation [15-13-00053]
- Russian Science Foundation [15-13-00053] Funding Source: Russian Science Foundation
The dimerization of 1-hexene was catalyzed by ten zirconocenes. High catalytic productivity was achieved via a two-step activation process, namely, the treatment of the zirconocene with triisobutylaluminum (TIBA) followed by methylaluminoxane (MAO). The zirconocene [(C5H4SiMe2)(2)O]ZrCl2 (10) exhibits a higher productivity and selectivity to dimer formation than the unsubstituted (C5H5)(2)ZrCl2 (1) complex. For the ansa-[Z(C5H4)(2)]ZrCl2 complexes, the catalytic activity increases as the angle between the cyclopentadienyl rings decreases. The dimerization selectivity of 10 reaches 94% when the reaction is performed using Et2AlCl as the chlorine source needed to form the catalytic species. The possible mechanism of selective alpha-olefin dimerization is discussed. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据