Results 11 to 20 of about 2,230,877 (347)

Various Synthetic Pathways for the Synthesis of 3,4-Disubstituted Isoxazole by One Pot Multicomponent Reaction

open access: yesOrbital: The Electronic Journal of Chemistry, 2020
Isoxazole is a five membered heterocyclic compound which is an azole with an oxygen atom next to nitrogen. The substituted isoxazole derivatives show various biological activities like antimicrobial, antiviral, anti-inflammatory, antioxidant, anticancer ...
Parul Setia, Ruchi Bharti, Renu Sharma
doaj   +3 more sources

Stabilization of gold nanoparticles on copper ferrrite and its application as bimetallic and magnetically recyclable catalyst for preparation of propargylamines [PDF]

open access: yesشیمی کاربردی روز, 2018
In this report for the first time, gold nanoparticles were supported and stabilized on copper ferrite nanoparticles (CuFe2O4 NPs) and obtained compound was characterized by different techniques such as transmission electron microscopy (TEM), X-ray ...
Mohammad Gholinejad   +3 more
doaj   +1 more source

Novel pH-sensitive catechol dyes synthesised by a three component one-pot reaction

open access: yesFrontiers in Chemistry, 2023
The synthesis and characterisation of new dyes based on indolizines bearing catechol groups in their structure is presented. The preparation was carried out through a simple three component one-pot reaction promoted by CuNPs/C, between pyridine-2 ...
Juan José Calmels   +7 more
doaj   +1 more source

Sufficient conditions for wave instability in three-component reaction-diffusion systems [PDF]

open access: yes, 2013
Sufficient conditions for the wave instability in general three-component reaction-diffusion systems are derived. These conditions are expressed in terms of the Jacobian matrix of the uniform steady state of the system, and enable us to determine whether
Hata, Shigefumi   +2 more
core   +3 more sources

Bismuth Triflate-Catalyzed Three-Component Mannich-Type Reaction [PDF]

open access: yesThe Journal of Organic Chemistry, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Thierry, Ollevier, Etienne, Nadeau
openaire   +2 more sources

Alkoxyallene‐Based LANCA Three‐Component Synthesis of 1,2‐Diketones, Quinoxalines, and Unique Isoindenone Dimers and a Computational Study of the Isoindenone Dimerization [PDF]

open access: yes, 2020
A series of β‐alkoxy‐β‐ketoenamides was prepared by the well‐established LANCA three‐component reaction of lithiated 1‐(2‐trimethylsilylethoxy)‐substituted allenes, nitriles, and α,β‐unsaturated carboxylic acids.
Bera M. K.   +6 more
core   +1 more source

Synthesis, Characterization and Biological Evaluation of Some New Heterocyclic Compounds Derived from 2-Naphthol

open access: yesZanco Journal of Pure and Applied Sciences, 2020
The present study deals with the synthesis, spectroscopic characterization, antibacterial and antifungal activities of novel series five-membered ring heterocyclic compounds containing nitrogen and sulfur heteroatoms.
Trifa Khalaf Mohammed   +2 more
doaj   +1 more source

1,3-Dipolar Cycloaddition (Part II): Three-Component Cu(I) Catalysed Click Reactions [PDF]

open access: yesKemija u Industriji, 2015
The Cu(I) catalysed reaction of sulfonyl or phosphoryl azide and terminal alkyne obtains a ketenimine intermediate that reacts with nucleophiles like water, alcohols, amines, imines, pyrroles or indoles producing corresponding amides, imidates, amidines ...
Krstulović L.   +4 more
doaj   +1 more source

Highly efficient construction of multi-substituted aminopyrazoles derivatives via iodine-mediated three-components reaction as potential anticancer agents

open access: yesGreen Chemistry Letters and Reviews, 2023
As an important class of natural products, pyrazole alkaloids have a large number of applications in various aspects such as medicines and pesticides. Due to the special position of its amino group, 3-aminopyrazole is easy to form a hydrogen bond donor ...
Zilin Gao   +9 more
doaj   +1 more source

Chemical Association via Exact Thermodynamic Formulations [PDF]

open access: yes, 1998
It can be fruitful to view two-component physical systems of attractive monomers, A and B, ``chemically'' in terms of a reaction A + B C, where C = AB is an associated pair or complex.
Anderko   +14 more
core   +2 more sources

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