TITANIUM-MEDIATED SYNTHESIS OF CONJUGATED DIENES

被引:39
作者
DOXSEE, KM
MOUSER, JKM
机构
[1] Department of Chemistry, University of Oregon, Eugene
关键词
D O I
10.1016/S0040-4039(00)74304-8
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Titanacyclobutenes, readily prepared from Cp2TiCH2.Al(CH3)2Cl and alkynes, react with ketones and aldehydes to afford metallacyclic products resulting from insertion into either the titanium-alkyl or the titanium-vinyl bond of the titanacyclobutene. The latter insertion products are thermally unstable, undergoing facile retro [4 + 2] cycloaddition to afford substituted 1,3-dienes in good yield.
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页码:1687 / 1690
页数:4
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