A reusable magnetic nickel nanoparticle based catalyst for the aqueous synthesis of diverse heterocycles and their evaluation as potential anti-bacterial agent
recyclable catalyst. The method is simple, eco-friendly and gave excellent yields of the products without taking recourse to columnchromatographic separation procedures. Computational method was employed to elucidate the selective formation of uncyclised product in reactioncourse. The biological activity of the synthesized compounds were investigated and the results demonstrated profound antibacterial
Synthesis of the first nanomagnetic particles with semicarbazide-based acidic ionic liquid tag: an efficient catalyst for the synthesis of 3,3′-(arylmethylene)bis(4-hydroxycoumarin) and 1-carbamato-alkyl-2-naphthol derivatives under mild and green conditi
作者:Mohammad Ali Zolfigol、Roya Ayazi-Nasrabadi、Saeed Baghery
DOI:10.1002/aoc.3461
日期:2016.7
activity of this nanoparticle catalyst were exhibited in the synthesis of two series of compounds with important biological activities, namely 3,3′‐(arylmethylene)bis(4‐hydroxycoumarin) and 1‐carbamato‐alkyl‐2‐naphthol derivatives, under mild, green and solvent‐free conditions. To the best of our knowledge, this is the first study of the synthesis and application of Fe3O4@SiO2@(CH2)3Semicarbazide‐SO3H/HCl}
氨基甲酰肼在二氧化硅包覆的磁性纳米颗粒表面上用氯磺酸官能化,Fe 3 O 4 @SiO 2 @(CH 2)3氨基脲SO 3H / HCl},是一种根据绿色化学目的制备的新型布朗斯台德磁性磁性催化剂,并通过傅立叶变换红外光谱,可见光和能量色散X射线光谱,X射线衍射,扫描电子,透射进行了全面表征电子和原子力显微镜和热重分析。这种纳米颗粒催化剂的能力和优异的活性在具有重要生物活性的两个系列化合物的合成中得到了体现,即3,3'-(芳基亚甲基)双(4-羟基香豆素)和1-氨基甲酸酯-烷基-2-萘酚衍生物在温和,绿色和无溶剂的条件下使用。据我们所知,这是Fe 3 O 4 @SiO 2 @(CH2)3 Semicarbazide-SO 3 H / HCl}为布朗斯台德酸固体磁性纳米粒子。因此,本研究可以在逻辑设计,合成和任务特定的布朗斯台德酸磁性纳米粒子催化剂的逻辑设计,合成和应用顺序方面开辟一个新颖
Thiamine hydrochloride as a recyclable organocatalyst for the synthesis of bis(indolyl)methanes, tris(indolyl)methanes, 3,3-di(indol-3-yl)indolin-2-ones and biscoumarins
作者:Sivagami Mathavan、Keerthana Kannan、Rajesh B. R. D. Yamajala
DOI:10.1039/c9ob02090j
日期:——
organocatalyst for the synthesis of a broad range of bis(indolyl)methanes in good to excellent yields. Green chemistry matrix calculations showed high atom economy and a small E-factor for the reaction. Moreover, the simple and easy operational protocol using a small amount of thiamine hydrochloride (1 mol%) makes this procedure an alternative approach for this transformation industrially. This protocol
Facile and Straightforward Synthesis of Racemic Version of Substituted 3-[3-(2-Hydroxyphenyl)-3-oxo-1-arylpropyl]-4-hydroxycoumarins: Easy Access to a Series of Biorelevant Warfarin Analogues
The present communication deals with a straightforward, efficient, and green synthesis of a series of racemic version of 3-[3-(2-hydroxyphenyl)-3-oxo-1-arylpropyl]-4-hydroxycoumarins as biologically interesting warfarin analogues upon decarboxylative hydrolysis of bis-coumarin derivatives in aqueous potassium hydroxide solution. The salient features of this practical method are operational simplicity