Concise Synthesis of Heterocycle-Fused Naphthoquinones by Employing Sonogashira Coupling and Tandem Addition-Elimination/Intramolecular Cyclization
作者:Kazunori Ueda、Mitsuaki Yamashita、Koichi Sakaguchi、Harukuni Tokuda、Akira Iida
DOI:10.1248/cpb.c13-00102
日期:——
A concise method for the synthesis of heterocycle-fused naphthoquinones such as naphtho[2,3-b]-furan-4,9-dione, 1H-benz[f]indole-4,9-dione, and naphtho[2,3-b]thiophene-4,9-dione was developed. This method employed Sonogashira coupling and tandem addition-elimination/intramolecular cyclization, and it enabled the preparation of versatile heterocycle-fused naphthoquinones from one substrate.
开发了一种合成杂环融合萘醌类化合物(如萘并[2,3-b]-呋喃-4,9-二酮、1H-苯并[f]吲哚-4,9-二酮和萘并[2,3-b]噻吩-4,9-二酮)的简便方法。该方法采用了 Sonogashira 偶联和串联加成-消除/分子内环化技术,能够用一种底物制备多功能杂环融合萘醌。