Olefin Polymerization with [{bis(imino)pyridyl}CoIICl2]: Generation of the Active Species Involves CoI

作者：T.M. Kooistra, Quinten Knijnenburg, J.M.M. Smits, Andrew D. Horton, Peter H. M. Budzelaar, Anton W. Gal · 发表于：Angewandte Chemie International Edition · 年份：2001 · DOI：10.1002/1521-3773(20011217)40:24<4719::aid-anie4719>3.0.co;2-o · 被引用次数：140 · 研究领域：Organometallic Complex Synthesis and Catalysis、Carbon dioxide utilization in catalysis、Synthetic Organic Chemistry Methods

Activated by reduction: On treatment with methylaluminoxane (MAO), the Brookhart/Gibson cobalt-based polymerization precatalyst [LCoIICl2] is first reduced to [LCoICl], subsequently alkylated to [LCoIMe], and finally converted into the (as yet unknown) active species (see scheme, PE=polyethene).