Chelate bis (imino) pyridine cobalt complexes: synthesis, reduction, and evidence for the generation of ethene polymerization catalysts by Li+ cation activation

…, G Kehr, R Fröhlich, B Wibbeling, G Erker…

文献索引：Kleigrewe, Nina; Steffen, Winfried; Bloemker, Tobias; Kehr, Gerald; Froehlich, Roland; Wibbeling, Birgit; Erker, Gerhard; Wasilke, Julia-Christina; Wu, Guang; Bazan, Guillermo C. Journal of the American Chemical Society, 2005 , vol. 127, # 40 p. 13955 - 13968

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被引用次数: 88

摘要

Treatment of the bis (iminobenzyl) pyridine chelate Schiff-base ligand 8 (ligPh) with FeCl2 or CoCl2 yielded the corresponding (ligPh) MCl2 complexes 9 (Fe) and 10 (Co). The reaction of 10 with methyllithium or “butadiene-magnesium” resulted in reduction to give the corresponding (ligPh) Co (I) Cl product 11. Similarly, the bis (aryliminoethyl) pyridine ligand (ligMe) was reacted with CoCl2 to yield (ligMe) CoCl2 (12). Reduction to (ligMe) CoCl (13) ...