Synthetic utility of organometallic reagents derived from group IV metal tetrachlorides and CH3Li.: A direct synthesis of 2-(2-keto-1-alkylidene)tetrahydropyrroles from 4-alkynylamines and acyl cyanides

被引:24
作者
Duncan, D [1 ]
Livinghouse, T [1 ]
机构
[1] Montana State Univ, Dept Chem, Bozeman, MT 59717 USA
关键词
D O I
10.1021/om9902380
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The non-Cp-bearing titanium alkyls (CH3)(2)TiCl2. L-2 (1a) and (CH3)(2)Ti(OTFE)Cl . L-2 (1b) and their Zr(IV) analogues have been shown to mediate efficient aminoalkyne cyclizations to provide azatitanium intermediates that undergo facial C-acylation in the presence of acyl cyanides.
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页码:4421 / 4428
页数:8
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