Abstract A simple and straightforward protocol has been accomplished for synthesis of pyrazolo[3,4-b]pyridines by reacting 5-amino-1-phenyl-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde (1) and β-enaminoketones (2) promoted by Iron(III)chloride. This protocol was also able to produce quinolines (5) by the reaction of O-nitrobenzaldehydes and β-enaminoketones. Simple reaction conditions, high compatibility and excellent yields are the advantages of this protocol. Graphical Abstract

中文翻译：

---

氯化铁 (III) 诱导合成吡唑并吡啶和喹啉

摘要 通过 5-氨基-1-苯基-3-(三氟甲基)-1H-吡唑-4-甲醛 (1) 和 β- 反应合成吡唑并[3,4-b]吡啶，完成了一个简单而直接的方案。氯化铁 (III) 促进的烯氨基酮 (2)。该协议还能够通过 O-硝基苯甲醛和 β-烯氨基酮的反应生产喹啉 (5)。该方案的优点是反应条件简单、兼容性好、收率高。图形概要