SYNTHESIS AND FORMAL [4+2]-CYCLOADDITION REACTIONS OF VINYLIMIDO COMPLEXES OF TITANOCENE

被引：100

作者：

DOXSEE, KM ^{[1
]}

FARAHI, JB ^{[1
]}

HOPE, H ^{[1
]}

机构：

[1] UNIV CALIF DAVIS, DEPT CHEM, DAVIS, CA 95616 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 1991年 / 113卷 / 23期

关键词：

D O I：

10.1021/ja00023a042

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Sources of the methylidene complex of titanocene, Cp2Ti = CH2, react with nitriles in the presence of donor ligands to afford vinylimido titanocene complexes. The vinylimido complexes react readily with ketones, nitriles, and imines, yielding products that retain the elements of the imido ligand. In no case are products of formal [2 + 2] metathesis obtained. Concerted or stepwise [4 + 2] cycloadditions are suggested as possible mechanisms for these coupling reactions.

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页码：8889 / 8898

页数：10

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