39201-89-3Relevant articles and documents
1,3-dipolar cycloaddition reactions of the compound obtaining from cyclopentadiene-PTAD and biological activities of adducts formed selectively
Bayrak, Cetin,Menzek, Abdullah,Taskin-Tok, Tugba,Taslimi, Parham,Yavari, Mirali Akbar
, (2022/01/04)
After known adduct (4) was synthesized by cycloaddition reaction of cyclopentadiene with 4-phenyl-1,2,4-triazoline-3,5-dione, seven new isoxazoline derivatives were synthesized from reactions of 4 with corresponding oximes prepared from benzaldehyde derivatives in the existence of the aqueous NaOCl in CH2Cl2 at 0°C—RT via nitrile oxides. Four new pyrazoline derivatives were also synthesized from reactions of 4 with corresponding prepared reagents via nitrile imines. Selectively, each of all isoxazole and pyrazoline derivatives was synthesized by 1,3-dipolar cycloaddition reactions of compound 4 with the corresponding reagents. Based on the results of their biological activity analyses, Ki values for acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and alpha-glucosidase (α-Gly) enzymes were obtained in this range 32.15 ± 5.73–107.44 ± 19.52 22.57 ± 4.30–186.07 ± 23.51, and 69.08 ± 8.54–528.07 ± 38.46 nM, respectively. Besides that, these compounds were subjected to molecular docking to describe the interaction against AChE, BChE, and α-Gly enzymes in which important interactions were visualized and evaluated with residues of the binding region in each target enzyme.
The local and natural sources in synthetic methods: the practical synthesis of aryl oximes from aryl aldehydes under catalyst-free conditions in mineral water
Goksu, H.,Orhan, E.
, (2021/07/27)
The synthesis of oximes from aryl aldehydes was prepared using hydroxylamine hydrochloride. The obtained oxime compounds were synthesized at maximum efficiency in mineral water at room temperature. The developed method is economical, practical and environmentally friendly. All of the aldehydes were converted the oxime a method using local sources and useful for industrial applications is introduced in the literature. Graphic abstract: In this study, addition elimination reaction, one of the important reactions of organic chemistry, was carried out using local sources. With this reaction, aryl oximes were obtained from aryl aldehydes in mineral water under catalyst-free conditions.[Figure not available: see fulltext.]
Adhesive functionalized ascorbic acid on CoFe2O4: A core-shell nanomagnetic heterostructure for the synthesis of aldoximes and amines
Sorkhabi, Serve,Ghadermazi, Mohammad,Mozafari, Roya
, p. 41336 - 41352 (2020/11/30)
This paper reports on the simple synthesis of novel green magnetic nanoparticles (MNPs) with effective catalytic properties and reusability. These heterogeneous nanocatalysts were prepared by the anchoring of Co and V on the surface of CoFe2O4 nanoparticles coated with ascorbic acid (AA) as a green linker. The prepared nanocatalysts have been identified by scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray atomic mapping, thermogravimetric analysis, X-ray powder diffraction, vibrating sample magnetometer analysis, coupled plasma optical emission spectrometry and Fourier transform infrared spectroscopy. The impact of CoFe2O4@AA-M (Co, V) was carefully examined for NH2OH·HCl oximation of aldehyde derivatives first and then for the reduction of diverse nitro compounds with sodium borohydride (NaBH4) to the corresponding amines under green conditions. The catalytic efficiency of magnetic CoFe2O4@AA-M (Co, V) nanocatalysts was investigated in production of different aldoximes and amines with high turnover numbers (TON) and turnover frequencies (TOF) through oximation and reduction reactions respectively. Furthermore, the developed environment-friendly method offers a number of advantages such as high turnover frequency, mild reaction conditions, high activity, simple procedure, low cost and easy isolation of the products from the reaction mixture by an external magnetic field and the catalyst can be reused for several consecutive runs without any remarkable decrease in catalytic efficiency.
