Synthesis of 3,4-dihydro-1,8-naphthyridin-2(1<i>H</i>)-ones via microwave-activated inverse electron-demand Diels–Alder reactions
作者:Salah Fadel、Youssef Hajbi、Mostafa Khouili、Said Lazar、Franck Suzenet、Gérald Guillaumet
DOI:10.3762/bjoc.10.24
日期:——
8-naphthyridin-2(1H)-ones have been synthesized with the inverse electron-demand Diels-Alder reaction from 1,2,4-triazines bearing an acylamino group with a terminal alkyne side chain. Alkynes were first subjected to the Sonogashira cross-coupling reaction with aryl halides, the product of which then underwent an intramolecular inverse electron-demand Diels-Alder reaction to yield 5-aryl-3,4-dihydro-1,8-naphthyridin-2(1H)-ones
取代的 3,4-dihydro-1,8-naphthyridin-2(1H)-ones 已通过逆电子需求 Diels-Alder 反应从带有酰基氨基和末端炔侧链的 1,2,4-三嗪合成. 炔烃首先与芳基卤化物进行 Sonogashira 交叉偶联反应,其产物然后进行分子内逆电子需求 Diels-Alder 反应,得到 5-aryl-3,4-dihydro-1,8-naphthyridin-2 (1H)-ones 通过有效的合成路线。