Efficient synthesis of bis(indolyl)methanes, bispyrazoles and biscoumarins using 4-sulfophthalic acid
作者:Hoda Banari、Hamzeh Kiyani、Alireza Pourali
DOI:10.1007/s11164-016-2720-7
日期:2017.3
H2O has been effectively catalyzed the synthesis of a series of biologically relevant bis(indolyl)methanes by the electrophilic substitution of indole derivatives on aldehyde compounds and 4,4′-(arylmethylene)-bis(3-methyl-1-phenyl-1 H -pyrazol-5-ol)s by condensing 5-methyl-2-phenyl-2,4-dihydro-3 H -pyrazol-3-one with various aldehydes under aqua conditions at roomtemperature. 3,3′-(Arylmethylene)-
Bimetallic and trimetallic magnetic nanoalloys base on cupper were easily prepared from their starting materials. These nanoparticles (NPs) were used for the synthesis of biscoumarines by two-component one-pot domino Knoevenagel-type condensation/Michael reaction between aldehydes and 4-hydroxycoumarin. Also, anti-bacterial, anti-oxidant, and DNA cleavage properties of these NPs were investigated.
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
Zwitterionic liquid (ZIL) coated CuO as an efficient catalyst for the green synthesis of bis-coumarin derivatives via one-pot multi-component reactions using mechanochemistry
convenient, solvent free strategy for the synthesis of bis-coumarins has been developed using zwitterionic liquid (ZIL) coated copper oxide (CuO) and mechanical ball milling. The ZIL were fabricated from imidazolium/benzimidazolium and sulfonate/carboxylate based moieties. Use of the ZIL offers an interesting multifunctional opportunity to immobilize them over CuO using the anionic part and the cationic part