作者:Henning Hopf、Verena Lehne、Ludger Ernst
DOI:10.1055/s-0035-1561483
日期:——
Starting with the parent compound [2.2.2]paracyclophane several routes were developed to synthesize its 4-vinyl derivative. From the 4-aldehyde and the bromomethyl derivative the stilbenophanes were prepared which photocyclize to the phenanthrenophanes. A new route to a bridged ketone was developed which was subjected to the addition of phenyllithium and to typical aromatic substitution reactions (inter
从母体化合物 [2.2.2] 对环芳开始,开发了几种合成其 4-乙烯基衍生物的路线。由4-醛和溴甲基衍生物制备芪酚,其光环化为菲酚。开发了一种新的桥接酮路线,该路线经历了苯基锂的加成和典型的芳香族取代反应(尤其是里什甲酰化、弗里德尔-克拉夫茨酰化)。桥接酮的溴化产生了一种不寻常的托酮衍生物。还对桥连烃(桥连酮的还原产物)进行了亲电取代反应。对于桥连酮和桥连烃,亲电取代发生区域选择性,有利于分别以顺式方向将新取代基引入桥接酮基和亚甲基基团。1 引言 2 结果与讨论 2.1 4-乙烯基[2.2.2] 对环烷 (5) 2.2 [2.2.2] 对环烷 (2a) 作为扩展芳烃系统的一部分 2.3 5,12-甲醇 [2.2.2] 对环烷的制备-25-one ( 3 ) 2.4 与 5,12-Methano[2.2.2] paracyclophan-25-one ( 3 ) 的选择性反应 2.4.1