A Convenient One-Pot Synthesis of Pyrano[3,2-<i>c</i>]quinolin-2,5(6<i>H</i>)-dione and 2<i>H</i>,5<i>H</i>-Pyrano[3,2-<i>c</i>]chromene-2,5-dione Derivatives
作者:Hassan Sheibani、Mohammad Hossein Mosslemin、Soheila Behzadi、Mohammad Reza Islami、Kazem Saidi
DOI:10.1055/s-2006-926295
日期:——
The preparation of novel pyrano[3,2-c]quinolin-2,5(6H)-dione and 2H,5H-pyrano[3,2-c]chromene-2,5-dione derivatives starting from 4-hydroxyquinolin-2(1H)-ones and 4-hydroxy-2H-chromene-2-one with chlorocarbonyl ketenes is described. This method provides a new route to produce fused pyrano derivatives in good to excellent yields in a short experimental time.
报道了以4-羟基喹啉-2(1H)-酮和4-羟基-2H-色烯-2-酮为起始物,通过氯代碳酰基烯酮合成新型吡喃并[3,2-c]喹啉-2,5(6H)-二酮和2H,5H-吡喃并[3,2-c]色烯-2,5-二酮衍生物的方法。该方法提供了一条在短时间内以良好至优异收率制备融合吡喃衍生物的新途径。