Fe3O4@SiO2-Alanine/Imidazole-CuI Nanocomposite: An Efficient and Recoverable Catalyst for Multicomponent Synthesis of 2-Aryl Quinazolines and 2,4,5-Triaryl Oxazoles DOI
Meng Jiang

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Language: Английский

Preparation of New Aminodimethyl(Methylsulfonyl)Dihydropyrido[ 2,3-d ]Pyrimidinedione Derivatives in the Presence of Fe 3 O 4 @SiO 2 @[O-(CH 2 ) 2 -NH 2 ][CH 3 CO 2 H] as Novel Nanocatalyst DOI

Farhad Shirzaei,

Hamid Reza Shaterian

Polycyclic aromatic compounds, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 17

Published: Nov. 10, 2024

An efficient synthesis of new aminodimethyl(methylsulfonyl)dihydropyrido[2,3-d]pyrimidinedione derivatives via the three components reaction 2-methanesulfonylacetonitrile, 1,3-dimethyl-6-amino-uracil, and aromatic aldehydes in presence [HO-(CH2)2-NH2][CH3CO2H] Fe3O4@SiO2@[O-(CH2)2-NH2][CH3CO2H] as novel heterogeneous magnetic nanocatalyst was described. The can be easily separated from mixture by an external magnet, recycled, reused several times without any significant decrease catalytic activity. These methods showed advantages, including high yields, easy operation, environment-friendly protocols.

Language: Английский

Citations

1
Copper immobilized onto the polyvinyl imidazole coated magnetic graphene oxide as an efficient heterogeneous catalyst for A3 and C–X cross-coupling reactions DOI
Z. Lasemi,

Seyed Mostafa Khosroanjom,

Mahmood Tajbakhsh

et al.

Research on Chemical Intermediates, Journal Year: 2024, Volume and Issue: 50(10), P. 4795 - 4816

Published: Aug. 24, 2024

Language: Английский

Citations

0
Application of Fe3O4@SiO2-Phen-Pd(0) Nanocomposite as an Efficient and Reusable Catalyst for Ecofriendly Synthesis of Benzothiazole Amides DOI

Jiezhong Chen,

Huiyan Zhou,

Guangyao Liu

et al.

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Language: Английский

Citations

0
Supported phenylalanine on core-shell mesoporous microsphere as a catalyst for the synthesis of triazolo[1,2-a] indazole-triones and spiro triazolo[1,2-a] indazole-tetraones DOI Creative Commons
Mahnaz Mirheidari, Ali Kareem Abbas, Javad Safaei‐Ghomi

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 3, 2024

In recent years, mesoporous silica materials have gained attention due to their unique properties, such as high surface area, pore volume, size, and chemical stability. These characteristics make them effective in various fields, particularly efficient supports heterogeneous catalytic reactions. The present study developed a novel type of core-shell microsphere material by anchoring phenylalanine on SiO2@NiO@MS support. catalyst support (SiO2@NiO@MS) was synthesized through homogeneous precipitation sol-gel methods, with NiO encapsulated within the porous silica. characterized using techniques, including Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive (EDS), Elemental mapping analysis, N2 adsorption-desorption, Transmission (TEM), Vibrating sample magnetometer (VSM), Thermogravimetric analysis (TGA). It then employed for synthesis triazolo[1,2-a]indazole-trione spiro triazolo[1,2-a]indazole-tetraones compounds from 4-phenyl urazole, dimedone, aromatic aldehydes or isatin derivatives. This synthetic approach offers multiple advantages, yields, faster reaction times, low requirements, environmentally sustainable conditions.

Language: Английский

Citations

0
A Novel Mesoporous SBA‐15 Supported Bifunctional Heterogeneous Catalyst for Base‐Free Transfer Hydrogenation Reaction of Ketones DOI Creative Commons
Yaşar Gök, Osman Tayyar Arlı, Yaşar Gök

et al.

Applied Organometallic Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 5, 2024

ABSTRACT Among the problems encountered in catalytic transfer hydrogenation reactions of ketones, base sensitivity ketones and corrosive effects bases used reaction have an important place especially industrial terms. Although there are various approaches to overcome this problem, solutions based on intrinsic properties catalyst seem more suitable. Within scope study, a novel heterogeneous was prepared for which can operate base‐free environment. To prepare catalyst, 1,2‐diphenylethane‐1,2‐diamine first tosylated then silyl derivative synthesized grafted onto mesoporous silica SBA‐15. Characterizations obtained SBA‐15 were carried out by X‐ray diffractometer (XRD), N 2 sorption, thermogravimetric analysis (TGA), scanning electron microscope (SEM), energy dispersive analysis, Fourier transform infrared (FT‐IR) analysis. The results showed that functionalized compound successfully immobilized into structure. Determination activity aromatic ketones. After determining optimum conditions with acetophenone, conversion rate (70%) observed acetophenone 1‐phenylethanol took without base. Under same higher (73%) 4′‐chloroacetophenone 1‐(4‐chlorophenyl)ethanol reaction. In performed determine recyclability, after 70% rate, 61% 65% rates, respectively, from under conditions.

Language: Английский

Citations

0
The Thorpe-Ziegler reaction: A powerful strategy for the synthesis of heterocycles DOI
Leila Amiri‐Zirtol, Zahra Karimi,

Fatemehbahar Azodzadegan

et al.

Advances in heterocyclic chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Language: Английский

Citations

0
Fe3O4@SiO2-Alanine/Imidazole-CuI Nanocomposite: An Efficient and Recoverable Catalyst for Multicomponent Synthesis of 2-Aryl Quinazolines and 2,4,5-Triaryl Oxazoles DOI
Meng Jiang

Journal of Inorganic and Organometallic Polymers and Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

Language: Английский

Citations

0