Results 11 to 20 of about 485,408 (262)

Green preparation of tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-ones using γ-Fe2O3@KSF as novel and recyclable magnetic catalyst [PDF]

Journal of Particle Science and Technology, 2019
The preparation of tetrahydrobenzimidazo[2,1-b]quinazolin-1(2H)-ones via a γ-Fe2O3@KSF-catalyzed multicomponent coupling reaction of 2-aminobenzimidazole, benzaldehydes, and dimedone in solvent-free conditions is reported.
Masoud Mohammadi Zeydi, Saghi Shiroud Ghorbani   +1 more
doaj   +1 more source

Solvent-free synthesis of propargylamines: an overview

RSC Advances, 2021
This review focuses on solvent-free methodologies for the synthesis of propargylamines, a versatile class of compounds with numerous applications.
Ravi Manujyothi, Thaipparambil Aneeja, Gopinathan Anilkumar   +2 more
openaire   +3 more sources

3-Isobutyl-5,5,7-tris(3-methylbut-2-en-1-yl)-1-phenyl-1,7-dihydro-4H-indazole-4,6(5H)-dione

Molbank, 2022
Here we describe the functionalization of lupulone natural compound in obtaining 3-isobutyl-5,5,7-tris(3-methylbut-2-en-1-yl)-1-phenyl-1,7-dihydro-4H-indazole-4,6(5H)-dione.
José Edmilson Ribeiro do Nascimento, Daniela Hartwig, Raquel Guimarães Jacob, Márcio Santos Silva   +3 more
doaj   +1 more source

Dynamics of solvent-free grafted nanoparticles [PDF]

The Journal of Chemical Physics, 2012
The diffusivity and structural relaxation characteristics of oligomer-grafted nanoparticles have been investigated with simulations of a previously proposed coarse-grained model at atmospheric pressure. Solvent-free, polymer-grafted nanoparticles as well as grafted nanoparticles in a melt were compared to a reference system of bare (ungrafted ...
Chremos, Alexandros, Panagiotopoulos, Athanassios, Koch, Donald   +2 more
openaire   +3 more sources

EXTRACTION OF PALM OIL’S FREE FATTY ACIDS BY TRIETHYLAMMINE (TEA) IN POLAR-NONPOLAR MIX-SOLVENT

Indonesian Journal of Chemistry, 2010
Palm oil contains unsaturated fatty acids that can be oxidated and can make rancidity of the palm oil. One of the trigliserida degradation products is free fatty acid. The usage of triethylammine (TEA) in the polar-nonpolar mix solvents could enhance the
Endang Astuti, Winarto Haryadi, Sabirin Matsjeh   +2 more
doaj   +1 more source

Solvent-Free Fabrication of Thick Electrodes in Thermoplastic Binders for High Energy Density Lithium-Ion Batteries

Nanomaterials, 2022
The rapid development of electric vehicles has generated a recent demand for high energy density lithium-ion batteries (LIBs). One simple, effective way to enhance energy density of LIBs is to increase the thickness of electrodes.
Han-Min Kim, Byeong-Il Yoo, Jin-Woo Yi, Min-Jae Choi, Jung-Keun Yoo   +4 more
doaj   +1 more source

Catalyst-free and solvent-free Michael addition of 1,3-dicarbonyl compounds to nitroalkenes by a grinding method

Beilstein Journal of Organic Chemistry, 2012
An environmentally benign, fast and convenient protocol has been developed for the Michael addition of 1,3-dicarbonyl compounds to β-nitroalkenes in good to excellent yields by a grinding method under catalyst- and solvent-free conditions.
Zong-Bo Xie, Na Wang, Ming-Yu Wu, Ting He, Zhang-Gao Le, Xiao-Qi Yu   +5 more
doaj   +1 more source

Optimization of Enzymatic Synthesis of Oleoyl-Diethanolamide in Solvent-Free System

Journal of Pure and Applied Microbiology, 2017
Oleoyl-diethanolamide was synthesized through amidification of diethanolamine (DEA) with oleic acid (OA) using immobile lipase as a biocatalyst. Response Surface Methodology (RSM) based on five-level five variable, Central Composite Rotatable Design ...
Zuhrina Masyithah, Tjahjono Herawan
doaj   +1 more source

Mechanochemical Approach towards Multi-Functionalized 1,2,3-Triazoles and Anti-Seizure Drug Rufinamide Analogs Using Copper Beads

Molecules, 2022
Highly regiospecific, copper-salt-free and neat conditions have been demonstrated for the 1,3-dipolar azide-alkyne cycloaddition (AAC) reactions under mechanochemical conditions.
Dhananjay Bhattacherjee, Igor S. Kovalev, Dmitry S. Kopchuk, Matiur Rahman, Sougata Santra, Grigory V. Zyryanov, Pralay Das, Rituraj Purohit, Vladimir L. Rusinov, Oleg N. Chupakhin   +9 more
doaj   +1 more source

Advanced green synthesis: Solvent-free and catalyst-free reaction

Green Synthesis and Catalysis
The solvent-free and catalyst-free (SFCF) reaction has garnered significant interest among chemists due to its alignment with many of the 12 principles of green chemistry.
Meng-Yao Li, Ao Gu, Jiatong Li, Yingbin Liu   +3 more
doaj   +1 more source