Unprecedented alkene stereocontrol in the Claisen rearrangement of cyclic bis-allylic esters

被引:7
|
作者
McFarland, C [1 ]
Hutchison, J [1 ]
McIntosh, MC [1 ]
机构
[1] Univ Arkansas, Dept Chem & Biochem, Fayetteville, AR 72701 USA
关键词
D O I
10.1021/ol0511732
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] The Ireland and ester enolate Claisen rearrangements of tertiary substituted bis-allylic esters derived from cyclohexenones afford pentenoic acids that possess tri- and tetrasubstituted alkylidenes with unprecedented levels of stereoselectivity. In some cases the higher energy exocyclic alkene is the major product.
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页码:3641 / 3644
页数:4
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