Substituted quinolinones. Part 13 a convenient route to heterocyclization reactions with 3-substituted 4-hydroxyquinolin-2(1<i>H</i>)-one
作者:Mohamed Abdel-Megid、Mohamed Abass、Mohamed Hassan
DOI:10.1002/jhet.5570440206
日期:2007.3
The reactivity of 3-[(dimethylamino)prop-2-enoyl]-4-hydroxyl-1-methylquinolin-2(1H)-one (2) towards different nucleophilic and electrophilic reagents was investigated. The convenient synthesis of several 3-heterocyclyl-quinolinones such as 3-pyridazinyl- 10, 11, 3-pyranyl 19a,b and 3-pyrazolylquinolinones 20a,b, 22, 26a,b, 27a,b, 31 and 33 has been described starting from the 3-acetylquinolinone 1
研究了3-[(二甲氨基)丙-2-烯酰基] -4-羟基-1-甲基喹啉-2(1 H)-一(2)对不同亲核试剂和亲电试剂的反应性。的方便合成几个3-杂环基-喹啉酮,如3- pyridazinyl- 10,11,3-吡喃基19A,B和3-pyrazolylquinolinones 20A,B,图22,图26A,B,27A,B,31和33已经描述从3-乙酰基喹啉酮1和烯胺2开始。此外,某些杂环[ C ^ ]喹啉酮,如嘧啶并12,14吡喃并如图3所示,图17A,B和pyrazolopyranoquinolinone 29 以高收率获得。