[EN] COMPOUNDS WHICH INCREASE APOLIPOPROTEIN A-1 PRODUCTION AND USES THEREOF IN MEDICINE [FR] COMPOSES QUI AUGMENTENT LA PRODUCTION DE L'APOLIPOPROTEINE A-1 ET LEURS UTILISATIONS EN MEDECINE
[EN] COMPOUNDS WHICH INCREASE APOLIPOPROTEIN A-1 PRODUCTION AND USES THEREOF IN MEDICINE [FR] COMPOSES QUI AUGMENTENT LA PRODUCTION DE L'APOLIPOPROTEINE A-1 ET LEURS UTILISATIONS EN MEDECINE
Direct one-pot synthesis of 3-nitroquinolin-2(1H)-one via H2O/AcOH system: An improvement to classical Friedlander reaction
作者:Xin-fei Chen、Chao Ren、Xiao-yong Xu、Xu-sheng Shao、Zhong Li
DOI:10.1016/j.tetlet.2017.01.092
日期:2017.4
methods, herein we present the one-pot cascade reaction of 1,1-dimeoxyth-2-nitroethene and 2-aminobenzaldehydes which is catalyst-free and via eco-friendly H2O/AcOH solvent, achieving 3-nitroquinolin-2(1H)-ones in moderate to excellent yields. Importantly, this concise and versatile protocol is a potential improvement to the traditional Friedlander reaction.
喹啉-2(1H)-及其衍生物由于在制药,农业和染料化学领域的广泛应用而引起了广泛的关注。与现有的合成方法相反,本文提出了无催化剂且通过生态友好的H 2 O / AcOH溶剂进行的1,1-二乙氧基乙基-2-硝基乙烯和2-氨基苯甲醛的一锅级联反应,实现了3 -nitroquinolin-2(1H)-ones(中等至极好的产率)。重要的是,这种简洁而通用的方案是对传统Friedlander反应的潜在改进。
Regio- and stereoselectivity of the 1,3-dipolar cycloaddition of azomethine ylides to 3-nitro-2(1H)-quinolinone derivatives: A new synthesis of Pyrrolo[3,4-c] quinolines
1,3-Dipolarcycloadditions of different azomethine ylides to 3-nitro-2(1H)-quinolinones were carried out to give 3a-nitro-4-oxo-1,2,3,3a,5,9b-hexahydropyrrolo[3,4-c]quinoline-4-one derivatives in satisfactory yield, in most cases with excellent stereoselectivity. The structure and stereochemistry of cycloadducts were studied in detail by X-ray and NMR spectroscopy methods.
将不同的偶氮甲碱叶立德与 3-nitro-2(1H)-quinolinones 进行 1,3-偶极环加成,得到 3a-nitro-4-oxo-1,2,3,3a,5,9 b -hexahydropyrrolo[3 ,4-c]喹啉-4-酮衍生物的收率令人满意,在大多数情况下具有优异的立体选择性。通过X射线和核磁共振光谱方法详细研究了环加合物的结构和立体化学。
3-Nitro-2(1<i>H</i>)-quinolone derivatives as 2π components in 1,3-dipolar cycloadditions of azomethine ylides: A new synthesis of pyrrolo[3,4-<i>c</i>]quinolines
Abstract The 1,3-dipolarcycloaddition of 3-nitro-2(1H)-quinolones with ester-stabilized azomethineylides derived from sarcosine ester and various aromatic aldehydes has been investigated. The structure and stereochemistry of cycloadducts were studied in detail by X-ray and NMR spectroscopy methods.
摘要 研究了 3-硝基-2(1 H )-喹诺酮类与源自肌氨酸酯和各种芳香醛的酯稳定偶氮甲碱叶立德的 1,3-偶极环加成反应。通过X射线和核磁共振光谱方法详细研究了环加合物的结构和立体化学。
Diastereoselective cycloaddition of isatin derived azomethine ylides to 3-nitro-2(1H)-quinolones
3-dipolar cycloaddition of 3-nitro-2(1)-quinolones with azomethine ylides derived from sarcosine or thiazolidine-4-carboxylic acid and various 1-indole-2,3-diones (isatins) have been investigated. The structure and stereochemistry of the formed cycloadducts were studied in detail by X-ray diffraction and NMR spectroscopy methods.
The 1,3-dipolarcycloaddition of 3-nitro-2(1)-quinolones and β-nitro-styrenes with azomethineylides derived from sarcosine and benzyl 4-oxopiperidine-1-carboxylate have been investigated. The structure of the formed cycloadducts were studied in detail by X-ray diffraction and NMR spectroscopy methods. This process is a solid and versatile strategy for rapidly assembling quinoline fused pyrrolines