Practical Synthesis of (<i>Z</i>)-Polyaromatic and Heteroaromatic Vinylacetylenes
作者:Anthony Hayford、Joseph Kaloko、Salwa El-Kazaz、Gwen Bass、Cheryl Harrison、Thomas Corprew
DOI:10.1021/ol0508173
日期:2005.6.1
[reaction: seet text] Two synthetic routes to several (Z)-polyaromatic and heteroaromatic substituted vinylacetylenes are described. The nature of aryl- or heteroaryl-substituted carboxaldehyde used as starting material dictated the choice of Wittig salt employed. A very attractive way to construct polyaromatic and pyridine-containing enynes is the reaction of polyaromatic and pyridine-containing aldehydes
[反应:seet text]描述了到几种(Z)-聚芳族和杂芳族取代的乙烯基乙炔的两种合成路线。用作原料的芳基或杂芳基取代的甲醛的性质决定了所用维蒂希盐的选择。构造聚芳族和含吡啶的烯炔的一种非常有吸引力的方法是在叔丁醇钾存在下,聚芳族和含吡啶的醛与溴甲基三苯基溴化phosph的反应,然后进行Sonogashira甲硅烷基化反应(方法B)。