Formation of epoxychromeno[4,3-c]isoquinolines through diastereoselective one-pot IMDA reaction of 4-chloro-3-[(1E)-3-oxo-3-phenyl-1-propen-1-yl]-2H-chromen-2-one and furfurylamine
作者:Abdolali Alizadeh、Kaveh Amir Ashjei Asalemi、Behnaz Farajpour、Mohammad Reza Halvagar
DOI:10.1007/s13738-020-01999-8
日期:2020.12
in situ from the reaction of 4-chloro-2-oxo-2H-chromene-3-carbaldehyde and Wittig reagent, with furfurylamine leads to fused epoxychromeno[4,3-c]isoquinolines. Reaction performed in one-pot condition and only one diastereomer was obtained. In this method, the key step for the formation of the final product is IMDA reaction. Graphic abstract A series of fused epoxychromeno[4,3-c]isoquinoline compounds
摘要 分子内Diels-Alder介导的(2 E)-3-(4-氯-2-亚甲基-2 H-铬烯-3-基)-1-苯基-2-丙烯-1-酮的反应4-氯-2-氧代-2 H-亚甲基-3-甲醛和维蒂希试剂与糠胺的反应原位生成稠合的环氧色素[4,3- c ]异喹啉。反应在一锅条件下进行,仅获得一种非对映异构体。在这种方法中,形成最终产物的关键步骤是IMDA反应。 图形摘要 通过环化策略,从4-氯-2-氧代-2- H 2-色烯-3-甲醛,Wittig试剂和糠胺中合成了一系列含有色烯骨架的稠合环氧chromeno [4,3- c ]异喹啉化合物。反应在回流条件下在DCM /甲苯中进行。