Exploiting the Divergent Reactivity of Isocyanoacetates: One-Pot Three-Component Synthesis of Functionalized Angular Furoquinolines
作者:Marinus J. Bouma、Géraldine Masson、Jieping Zhu
DOI:10.1002/ejoc.201101567
日期:2012.1
moderate to excellent yields. Mechanistically, the three-component reaction of 2, 3, and 4 leading to 5-alkoxyoxazoles was followed by a domino sequence involving Diels-Alder/retroDiels-Alder/oxidation reactions. In this one-pot process, five chemical bonds were created with concurrent formation of two heterocyclic rings. The reaction was performed under thermal conditions and no external reagent was
基于 α-(4-硝基苯基)-α-异氰基乙酸酯的新反应特性,开发了多取代呋喃 [2,3-c] 喹啉 1 的一锅三组分合成方法。在室温下将醛 2、邻炔基苯胺 3 和 α-(4-硝基苯基)-α-异氰基乙酸酯 4 在甲醇中简单混合,然后加入甲苯并加热回流,得到多取代的呋喃 [2,3-c]喹啉的产量中等至极好。从机制上讲,产生 5-烷氧基恶唑的 2、3 和 4 的三组分反应之后是涉及 Diels-Alder/retroDiels-Alder/氧化反应的多米诺骨牌序列。在这个一锅法中,产生了五个化学键,同时形成了两个杂环。