ZnCl<sub>2</sub>-Promoted Three-Component Reaction of 2-Aminochromenones, Aromatic Aldehydes, and Quinone Monoketals: Access to 5,6-Dihydro-12<i>H</i>-chromeno[2,3-<i>c</i>]isoquinolin-12-one Derivatives
作者:Wenyan Zhou、Jianbo Gan、Haiwen Li、Cunde Wang
DOI:10.1021/acs.joc.3c01405
日期:2023.10.20
A three-component reaction of 2-amino-4H-chromen-4-ones, aromatic aldehydes, and 4,4-dialkoxycyclohexa-2,5-dien-1-ones for the concise synthesis of chromeno[2,3-c]dihydroisoquinoline derivatives has been investigated. This reaction involved consecutive ZnCl2-promoted Micheal addition and intramolecular Friedel–Crafts alkylation. This synthetic protocol offered several advantages, including the readily
2-氨基-4 H -色烯-4-酮、芳香醛和 4,4-二烷氧基环己-2,5-二烯-1-酮的三组分反应,用于简明合成色烯[2,3- c] ]二氢异喹啉衍生物已被研究。该反应涉及连续的 ZnCl 2促进的迈克尔加成和分子内弗里德尔-克来福特烷基化。该合成方案具有多种优点,包括易于获得的起始材料、良好的官能团耐受性和操作简单。此外,根据 X 射线衍射研究确定了所得产物的结构。