The magnetic nanostructured natural hydroxyapatite (HAP/Fe3O4 NPs): an efficient, green and recyclable nanocatalyst for the synthesis of biscoumarin derivatives under solvent-free conditions
The magnetic nanostructured natural hydroxyapatite (HAP/Fe3O4 NPs) as a novel magnetic nanocatalyst was synthesized and fully characterized. The excellent catalytic activity of HAP/Fe3O4 NPs was investigated in the synthesis of biscoumarin derivatives under mild, green and solvent-freeconditions. A series of aromatic (bearing different functional groups), heteroaromatic and aliphatic aldehydes have
摘要合成并充分表征了 磁性纳米结构天然羟基磷灰石(HAP / Fe 3 O 4 NPs)。HAP / Fe 3 O 4的优异催化活性在温和,绿色和无溶剂条件下合成双香豆素衍生物中研究了NP。一系列芳香族(具有不同的官能团),杂芳香族和脂肪族醛已被转化为双香豆素,具有良好的分离产率。本方法与绿色化学原理非常吻合的显着优点是:催化剂便宜,无毒,易于处理且可重复使用多达六次循环,纳米结构催化剂的磁分离,后处理简单,反应时间短,产品的高收率和使用无溶剂条件。 图形概要
Synthesis and Pharmacological Investigations of Some 4-Hydroxycoumarin Derivatives
作者:Ilia Manolov、Nicolay D. Danchev
DOI:10.1002/ardp.200390010
日期:2003.4
The synthesis of ten coumarin derivatives of 4‐hydroxycoumarin and various unsaturated ketones and aldehydes is described. The structures of the synthesized compounds were confirmed by IR, 1H‐NMR, and mass‐spectral data. Acute toxicity studies of the compounds were performed on mice by oral and intraperitoneal administration. A comparative pharmacological study of the in vivo anticoagulant effects
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)-
Developing a highly potent anthelmintic: study of catalytic application of l-proline derived aminothiourea in rapid synthesis of biscoumarins and their in vitro anthelmintic essay
作者:Balamphrang Kharrngi、Errini Decruse Dhar、Grace Basumatary、Dharitri Das、Ramesh Ch Deka、Arun K Yadav、Ghanashyam Bez
DOI:10.1007/s12039-020-01881-3
日期:2021.3
compounds 2a, 2j, 2k and 2o demonstrated much stronger anthelmintic activity against Raillietina echinobothrida in comparison to the standard drug, Praziquantel. Molecular docking simulations of the optimized compounds with β-tubulin showed excellent binding interactions with several amino acid residues of the active site and the docking scores with β-tubulin were found to be comparable to the in vitro
Tetramethylguanidium-based ionic liquids as efficient and reusable catalysts for the synthesis of biscoumarin at room temperature
作者:Anlian Zhu、Mingyue Wang、Lingjun Li、Jianji Wang
DOI:10.1039/c5ra14247d
日期:——
The ionic liquid tetramethylguanidium acetate is very efficient for the one-pot catalytic preparation of biscoumarins through a domino Knoevenagel–Michael reaction at room temperature.