A terminal and four-coordinate titanium alkylidene prepared by oxidatively induced α-hydrogen abstraction

被引:96
作者
Basuli, F [1 ]
Bailey, BC [1 ]
Tomaszewski, J [1 ]
Huffman, JC [1 ]
Mindiola, DJ [1 ]
机构
[1] Indiana Univ, Dept Chem & Mol Struct Ctr, Bloomington, IN 47405 USA
关键词
D O I
10.1021/ja034786n
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
One-electron oxidation of the β-diketiminate titanium(III) bis-neopentyl complex (Nacnac)Ti(CH2tBu)2 (Nacnac = [Ar]NC(Me)CHC(Me)N[Ar], Ar = 2,6-(CHMe2)2C6H3) promotes α-abstraction to afford the rare and terminal four-coordinate neopentylidene (Nacnac)Ti=CHtBu(OTf), which was structurally characterized. Alkylidene (Nacnac)TiCHtBu(OTf) reacts cleanly with benzophenone and the imine functionality of the Nacnac ligand to afford the corresponding Wittig-type products. Copyright © 2003 American Chemical Society.
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页码:6052 / 6053
页数:2
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