作者:Samuel E. Watson
DOI:10.1080/00397910500214383
日期:2005.10.1
Abstract A short, high yielding synthesis of a novel substituted pyrrolo[2,3-b]xanthone has been developed. The synthesis begins with a copper catalyzed Ullmann coupling reaction followed by and intramolecular Friedel-Crafts acylation reaction to establish the xanthone core structure. After a regioselective nitration, a Leimgruber-Batcho synthesis establishes the final pyrrole ring.
摘要 已开发出一种新型取代吡咯并[2,3-b] 呫吨酮的短时间、高产合成。合成开始于铜催化的 Ullmann 偶联反应,然后是分子内 Friedel-Crafts 酰化反应以建立氧杂蒽酮核心结构。在区域选择性硝化之后,Leimgruber-Batcho 合成建立了最终的吡咯环。