Preparation of α,ω-alkanediylbis-(3-sulfolenes) as precursors for α,ω-bis-(1,3-dienyl)alkanes
作者:Ta-shue Chou、Chung-Wen Ko、Teng-Kuei Yang
DOI:10.1016/s0040-4020(01)81995-5
日期:1992.1
The sequential substitution reactions of α,ω-diiodoalkanes with two units of 3-sulfolenyl anions conveniently lead to the formation of α,ω-alkanediylbis-(3-sulfolenes) 7. These bissulfolenes are stable precursors for the corresponding bis-(1,3-dienyl)alkanes 16 and the transformation can be readily achieved by a simple thermolytic cheletropic reaction.
α,ω-二碘代烷烃与两个单元的3-环丁烯基阴离子的顺序取代反应方便地导致α,ω-烷二基双-(3-硫代烯烃)7的形成。这些双亚砜是相应的双-(1,3-二烯基)烷烃16的稳定前体,并且可以通过简单的热解亲变反应容易地实现转化。