Results 11 to 20 of about 1,083,524 (297)

DFT Studies on the Stereoselective Three-Component Ugi Reaction

open access: yesOrbital: The Electronic Journal of Chemistry, 2019
Mechanism and stereochemistry of three component Ugi reaction (3C-Ugi) were studied theoretically based on DFT calculations. Structures of reagents, products, intermediates, and transition states were optimized at M062X/6-31+g(d,p) level of theory in gas
Elaheh Sadat Sharifzadeh   +1 more
doaj   +3 more sources

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

Palladium-Catalyzed Asymmetric Three-Component Reaction between Glyoxylic Acid, Sulfonamides and Arylboronic Acids for the Synthesis of alpha-Arylglycine Derivatives [PDF]

open access: yes, 2023
A palladium-catalyzed asymmetric three-component synthesis of alpha-arylglycine derivatives starting from glyoxylic acid, sulfonamides and arylboronic acids is reported.
Andreas M., Diehl   +4 more
core   +1 more source

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

Three-Component Cyclobutylation via Silver(I)-Catalyzed Carbene Transfer Reactions with [1.1.1]Propellane [PDF]

open access: yes, 2023
In this study, we report an innovative Ag(I)-catalyzed carbene transfer reaction that employs [1.1.1]propellane as a precursor to form the methylene cyclobutyl carbene complex for a controllable three-component reaction.
Yuhyun Kim (17080791)   +2 more
core   +3 more sources

Three-Component Cycloaddition To Synthesize Aziridines and 1,2,3-Triazolines [PDF]

open access: yes, 2019
An efficient three-component cycloaddition of oxa­(aza)­bicyclic alkenes/norbornene in the presence of NaN3 and arylsulfonyl chlorides was developed, affording the corresponding aziridine products in good yields (up to 82%) with moderate to good endo/exo
Donghan Chen (2146306)   +8 more
core   +5 more sources

Three-Component Minisci Reaction with 1,3-Dicarbonyl Compounds Induced by Visible Light [PDF]

open access: yes, 2020
A three-component Minisci reaction coupling of 1,3-dicarbonyl compounds with vinyl ethers and quinolines or isoquinolines under visible light is developed.
Yang Zhang (30734)   +11 more
core   +1 more source

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

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

A one pot three-component reaction for the preparation of dihydroquinolines with two different ketones and aromatic amines [PDF]

open access: yes, 2017
A three component reaction with two different ketones and aromatic amines was firstly investigated. The difference in reactivity between ordinary ketones and ketone esters allowed for the production of 1,2-DHQs efficiently.
Li, GX (reprint author), Chinese Acad Sci, Chengdu Inst Biol, Nat Prod Res Ctr, Chengdu 610041, Sichuan, Peoples R China.   +5 more
core   +1 more source

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