The novel title compounds 6 and 7 were conveniently synthesized by a facile two-step route starting from (2-chloro-2-nitroethenyl)benzenes 2 via the base-induced cyclopropanations of the intermediate 2-(2-chloro-2-nitro-1-phenylethyl)cyclohexanones 3 and 4.
Basicity‐Controlled [3+2] Cyclization of 3‐Hydroxyquinolin‐ones and β‐Chlorinated Nitrostyrenes
作者:Jiamin Wu、Fei Hu、Guishun Bai、Yang Yang、Damien Bonne、Jean Rodriguez、Congyong Yue、Hong Wang、Xiaoze Bao
DOI:10.1002/ejoc.202300218
日期:2023.6.6
and medicinal chemistry. Herein, a basicity-controlled synthesis of (dihydro)furo[2,3-c]quinolin-4(5H)-one derivatives through (3+2) cyclization between 3-hydroxyquinolin-2-ones and β-chlorinated nitrostyrenes was developed.
通过天然产物片段的重组构建有趣的支架在有机化学和药物化学中都很重要。在此,通过3-羟基喹啉-2-酮与β-氯化硝基苯乙烯之间的(3+2)环化,碱度控制合成(二氢)呋喃并[2,3-c]喹啉-4(5 H )-酮衍生物。发达。