Unusual Product from Condensative Cyclization: Pyrano[3,2-f]quinolin-3,10-diones from 6-Amino-5-[(trimethylsilyl)ethynyl]-2H-chromen-2-one and Aryl Aldehydes
作者:K. Majumdar、Abu Taher、Sudipta Ponra
DOI:10.1055/s-0029-1219378
日期:2010.3
F]quinoline-3,10(7 H)-dione derivatives has been accomplishedvia sulfuric acid promoted condensation--cyclizationof 6-amino-5-[(trimethylsilyl)ethynyl]-2 H-chromen-2-one and aromatic aldehydes.The products can be oxidized to the corresponding 10-methoxy-8-aryl-3 H-pyrano[3,2- F]quinolin-3-one derivativesby FeCl 3 ˙6H 2 O in methanol.
8,9-二氢-3 H-吡喃并[3,2-F]喹啉-3,10(7 H)-二酮衍生物通过硫酸促进缩合-6的环化反应实现了一条高效、简单的合成路线-amino-5-[(trimethylsilyl)ethynyl]-2 H-chromen-2-one 和芳香醛。产物可以氧化成相应的10-甲氧基-8-芳基-3 H-吡喃[3,2-F ]quinolin-3-one 衍生物由 FeCl 3 ˙6H 2 O 在甲醇中生成。