文献类型：期刊文献

英文题名：Organotitanium chemistry: substituent effects on the dimerization of isoprene catalyzed by alkenyl-substituted cyclopentadienyl titanium complexes

作者：Yong, Li[1]; Tao, Xiaochun[1]; Qian, Fang[1]; Qian, Yanlong[1]

机构：[1]E China Univ Sci & Technol, Organomet Chem Lab, Shanghai 200237, Peoples R China

年份：2002

卷号：184

期号：1-2

起止页码：147

外文期刊名：JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL

收录：;EI(收录号：2002307029590);WOS:【SCI-EXPANDED(收录号:WOS:000176634000017)】；

语种：英文

外文关键词：oligomerization of isoprene; alkenyl-substituted titanocene; substituent effect; catalytic activity; selectivity

摘要：Using the catalyst system consisting of an alkenyl-substituted (Cp2TiCl2)-Ti-' and i-C3H7MgCl, isoprene can be dimerized to linear dimers 2,6-dimethyl-l-trans-3,6-octatriene and 3,6-dimethyl-1,3,6-octatriene under mild reaction condition. The substituent effects of alkeryl-substituted titanocene catalysts on both the yield and the selectivity were studied. (C) 2002 Elsevier Science B.V. All rights reserved.