作者:Johannes Platzek、Günther Snatzke
DOI:10.1016/s0040-4020(01)87675-4
日期:1987.1
dibenzosuberone by dehydrogenation, reduction of the keto group and dicarboxylation. After resolution with cinchonine the (-)-enantiomer served as starting material for various transformation products with trans-configuration of the substituents at the 10,11-positions. Ring closure between these two groups led to the introduction of an additional homo- or heterocyclic ring. Attempted bromination of the dimethyl
通过脱氢,酮基的还原和二羧化作用,由二苯并亚戊酮合成二羧酸8。用辛可宁分解后,(-)-对映异构体用作各种转化产物的起始材料,所述取代基在10,11-位具有反式构型。这两个基团之间的闭环导致引入了另外的同或杂环。二甲基酯的尝试溴化9的8得到内酯49相反,LAH的减少导致形成相应的醚桥。在两种桥接化合物中,已经通过修饰C(11)上的取代基制备了几种衍生物。此外,描述了5-酮衍生物31和36的硝化产物,以及一些硫代类似物和含有一个额外的杂环的产物。