Results 11 to 20 of about 3,737,155 (255)

Dendrons containing boric acid and 1,3,5-tris(2-hydroxyethyl)isocyanurate covalently attached to silica-coated magnetite for the expeditious synthesis of Hantzsch esters

Scientific Reports, 2021
A new multifunctional dendritic nanocatalyst containing boric acid and 1,3,5-tris(2-hydroxyethyl)isocyanurate covalently attached to core–shell silica-coated magnetite (Fe3O4@SiO2@PTS-THEIC-(CH2)3OB(OH)2) was designed and properly characterized by ...
Mahsa Sam, Mohammad G. Dekamin, Zahra Alirezvani   +2 more
doaj   +1 more source

Synthesis of Carboxymethyl Chitosan and Its Derivatives Using KI and/or Ultrasonication

Chemistry Proceedings, 2022
Chitosan is a natural polysaccharide that is mainly obtained from the shell of marine crustaceans including crabs, lobsters, shrimps, etc. Chitosan has been widely used in biomedicine due to its special characteristics of low toxicity, biocompatibility ...
Mahsa Rajabi, Mohammad Dohendou, Mohammad G. Dekamin   +2 more
doaj   +1 more source

Catalytic Enantioselective Approaches to the oxa-Pictet–Spengler Cyclization and Other 3,6-Dihydropyran-Forming Reactions

SynOpen, 2019
This Short Review provides an analysis of the state-of-the-art in catalytic enantioselective oxa-Pictet–Spengler cyclizations. Also discussed are other catalytic reactions providing access to enantio­enriched isochromans and tetrahydropyrano[3,4-b ...
Zhengbo Zhu, Alafate Adili, Chenfei Zhao, Daniel Seidel   +3 more
doaj   +1 more source

Novel magnetic propylsulfonic acid-anchored isocyanurate-based periodic mesoporous organosilica (Iron oxide@PMO-ICS-PrSO3H) as a highly efficient and reusable nanoreactor for the sustainable synthesis of imidazopyrimidine derivatives

Scientific Reports, 2020
In this study, preparation and characterization of a new magnetic propylsulfonic acid-anchored isocyanurate bridging periodic mesoporous organosilica (Iron oxide@PMO-ICS-PrSO3H) is described. The iron oxide@PMO-ICS-PrSO3H nanomaterials were characterized
Arezoo Akbari, Mohammad G. Dekamin, Amene Yaghoubi, Mohammad Reza Naimi-Jamal   +3 more
doaj   +1 more source

Synthesis of nanocellulose aerogels and Cu-BTC/nanocellulose aerogel composites for adsorption of organic dyes and heavy metal ions

Scientific Reports, 2021
MOFs compounds with open metal sites, particularly Cu-BTC, have great potential for adsorption and catalysis applications. However, the powdery morphology limits their applications. One of the almost new ways to overcome this problem is to trap them in a
Nuhaa Shaheed, Shahrzad Javanshir, Maryam Esmkhani, Mohammad G. Dekamin, Mohammad Reza Naimi-Jamal   +4 more
doaj   +1 more source

Synthesis of New 1,3,5-Triazine-Based 2-Pyrazolines as Potential Anticancer Agents

Molecules, 2018
A new series of 1,3,5-triazine-containing 2-pyrazoline derivatives (8–11)a–g was synthesized by cyclocondensation reactions of [(4,6-bis((2-hydroxyethyl)amino)-1,3,5-triazin-2-yl)amine]chalcones 7a–g with hydrazine hydrate and ...
Leydi M. Moreno, Jairo Quiroga, Rodrigo Abonia, Jonathan Ramírez-Prada, Braulio Insuasty   +4 more
doaj   +1 more source

Chitosan-EDTA-Cellulose bio-based network: A recyclable multifunctional organocatalyst for green and expeditious synthesis of Hantzsch esters

Carbohydrate Polymer Technologies and Applications, 2023
The cellulose grafted to chitosan by ethylenediaminetetraacetic acid (Cs-EDTA-Cell) material was prepared and characterized by different spectroscopic, microscopic or analytical methods and techniques including Fourier transform infrared (FTIR) and ...
Negin Rostami, Mohammad G. Dekamin, Ehsan Valiey   +2 more
doaj   +1 more source

Fe3O4/SiO2 decorated trimesic acid-melamine nanocomposite: a reusable supramolecular organocatalyst for efficient multicomponent synthesis of imidazole derivatives

Scientific Reports, 2023
This article describes supramolecular Fe3O4/SiO2 decorated trimesic acid-melamine (Fe3O4/SiO2-TMA-Me) nanocomposite that can be prepared with features that combine properties of different materials to fabricate a structurally unique hybrid material.
Babak Fattahi, Mohammad G. Dekamin
doaj   +1 more source

Recent Advances in Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds

Chemical Reviews, 2021
This review surveys recent progress in the chemistry of polycyclic heteroaromatic molecules with a focus on structural diversity and synthetic methodology. The article covers literature published during the period of 2016–2020, providing an update to our
Arseni Borissov, Yogesh Kumar Maurya, Liliia Moshniaha, Wai-Shing Wong, Marika Żyła-Karwowska, M. Stępień   +5 more
semanticscholar   +1 more source

Design and characterization of an urea-bridged PMO supporting Cu(II) nanoparticles as highly efficient heterogeneous catalyst for synthesis of tetrazole derivatives

Scientific Reports, 2022
In this work, a new periodic mesoporous organosilica with urea-bridges produced by the reaction of (3-aminopropyl)triethoxysilane and toluene-2,4-diisocyanate (APS-TDU-PMO) is introduced.
Ehsan Valiey, Mohammad G. Dekamin
doaj   +1 more source