Synthesis of Tricyclic Quinolones and Naphthyridones by Intramolecular Heck Cyclization of Functionalized Electron-Rich Heterocycles
作者:Egle M. Beccalli、Gianluigi Broggini、Michela Martinelli、Giuseppe Paladino、Caterina Zoni
DOI:10.1002/ejoc.200400817
日期:2005.5
thiophene-2-carboxylic acids 1 or thiophene- and furan-3-carboxylic acids 6, we report the synthesis of tricyclic fused quinolone and naphthyridone derivatives, in only three steps, by an intramolecular Heck cyclization. We also report the use of microwave irradiation to obtain, in some cases, better yields of cyclized products. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
从市售的吡咯-和噻吩-2-羧酸 1 或噻吩-和呋喃-3-羧酸 6 开始,我们报告了三环稠合喹诺酮和萘啶酮衍生物的合成,只需三个步骤,通过分子内 Heck 环化。我们还报告了使用微波辐射在某些情况下获得更好的环化产物产率。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)