作者:Eiji Tayama、Sayaka Sugai、Masahiro Hara
DOI:10.1016/j.tetlet.2006.08.100
日期:2006.10
alkenes with n-butyllithium is shown to proceed in a marked preference to the [2,3] Wittig rearrangement to afford the allylic (1Z,3E)-dienyl ethers in high stereoselectivities. The synthetic utility of this method is demonstrated by the Claisen rearrangement of the dienyl ethers thus obtained.
1-烯丙氧基-4-甲氧基-(2 Z)-烯烃与正丁基锂的1,4-消除反应显示出明显优先于[2,3] Wittig重排以提供烯丙基(1 Z高立体选择性的,3 E)-二烯基醚。由此获得的二烯基醚的克莱森重排证明了该方法的合成效用。