Synthesis and antioxidant properties of some novel 1,3,4,2-oxadiazaphosphepino[6,7-<i>c</i>]quinolinones and pyrazolo[3,4:4′,3′]quinolino[5,1-<i>c</i>][1,4,2]oxazaphosphinine
作者:Mohamed M. Hassan、Somaia M. Abdel-Kariem、Tarik E. Ali
DOI:10.1080/10426507.2017.1290625
日期:2017.7.3
and phenyl phosphonic dichloride, respectively, in dry dioxane. Also, reaction of hydrazone 2 with tris(2-chloroethyl)phosphite under the same reaction conditions gave pyrazolo[3,4:4′,3′]quinolino[5,1-c][1,4,2]oxazaphosphinine 10. However, when hydrazone 2 was treated with phosphonic acid, phosphorus tribromide or phosphorus oxychloride, 3,5-dimethyl-1-phenyl-1,5-dihydro-4H-pyrazolo[4,3-c]quinolin-4-one
图形摘要 摘要 一系列新型 1,3,4,2-oxadiazaphosphepino[6,7-c]quinolinones 3–5, 9, 和 11 已通过处理 4-hydroxy-1-methyl-3-[1 -(2-苯肼基)乙基]喹啉-2(1H)-一 (2) 与一些硫化磷、亚磷酸二乙酯和苯基膦酰二氯,分别在干燥二恶烷中。此外,腙2与亚磷酸三(2-氯乙基)酯在相同反应条件下反应得到吡唑并[3,4:4',3']喹啉[5,1-c][1,4,2]氧氮杂膦10。然而,当腙 2 用膦酸、三溴化磷或三氯氧化磷处理时,3,5-二甲基-1-苯基-1,5-二氢-4H-吡唑并[4,3-c]喹啉-4-酮(7 ) 在所有情况下都被隔离。评价化合物的抗氧化活性。在合成的化合物中,1,3,4,2-oxadiazaphosphepino[6,