Results 1 to 10 of about 4,204 (201)

Simple Synthetic Approach to N-(Pyridin-2-yl)imidates from Nitrostyrenes and 2-Aminopyridines via the N-(Pyridin-2-yl)iminonitriles as Intermediates [PDF]

open access: yesMolecules, 2023
A facile, green, synthetic protocol of several substituted N-(pyridin-2-yl)imidates from nitrostyrenes and 2-aminopyridines via the corresponding N-(pyridin-2-yl)iminonitriles as intermediates is reported.
Andriani G. Chaidali, Ioannis N. Lykakis
doaj   +2 more sources

A mild, catalyst-free synthesis of 2-aminopyridines. [PDF]

open access: yesTetrahedron, 2008
Alkylation of 2-mercaptopyridine with 1,2-dibromoethane affords a cyclic dihydrothiazolopyridinium salt that can serve as a precursor of 2-aminopyridines. Its reaction with primary or secondary amines, either neat or in DMSO, under mild conditions gives the title compounds.
Poola B, Choung W, Nantz MH.
europepmc   +4 more sources

Fluorescent pyridine phosphonium salts via transmutation of metallabenzenes [PDF]

open access: yesNature Communications
Metallabenzenes are recognized as a unique class of aromatic compounds, not only of structural and theoretical interest but also as platforms to design powerful transformations.
Yaowei Zhang   +5 more
doaj   +2 more sources

Synthesis of 2-aminopyridine Lactones and Studies of Their Antioxidant, Antibacterial and Antifungal Properties

open access: yesChemistry Proceedings, 2021
In the present work, the synthesis and biological activities of substituted 2-aminopyridine δ-lactone derivatives were achieved. 4,6,6-trimethyl-2-oxo-5,6-dihydro-2H-pyran-3-carbonitrile was synthesised from 4-hydroxy-4-methylpentan-2-one, followed by ...
Fadila Salhi   +3 more
doaj   +1 more source

Synthesis of MAPA Reagents and 2-Alkyl(aryl)aminopyridines from 2-Bromopyridine Using the Goldberg Reaction

open access: yesMolecules, 2022
A short and economical synthesis of various 2-methylaminopyidine amides (MAPA) from 2-bromopyridine has been developed using the catalytic Goldberg reaction.
Daniel L. Comins
doaj   +1 more source

Synthesis and Fluorescent Properties of Aminopyridines and the Application in “Click and Probing”

open access: yesMolecules, 2022
Unsubstituted pyridin-2-amine has a high quantum yield and is a potential scaffold for a fluorescent probe. However, the facile access to conjugated highly substituted aminopyridines and the study of their fluorescent properties is scarce. In this paper,
Zongyang Li   +6 more
doaj   +1 more source

Multicomponent, Solvent-Free Synthesis of 4-Substituted Aminopyrido[2,3-d]pyrimidines Derivatives

open access: yesChemistry Proceedings, 2023
4-substituted aminopyrido [2,3-d]pyrimidines derivatives 1a–f were synthesized via the multicomponent reaction of 2-aminopyridines, triethyl orthoformate, and diverse primary amines under solvent-free conditions.
Fatima Belhadj   +4 more
doaj   +1 more source

Nickel/iodine-catalyzed synthesis of 2-arylimidazo[1,2-a]pyridines through Ortoleva-King type protocol

open access: yesResults in Chemistry, 2023
A novel Ni-I2 catalytic system was introduced for the synthesis of 2-arylimidazo[1,2-a]pyridines from readily available arylmethyl ketones and 2-aminopyridines as the starting materials.
Rose Mary Philip   +2 more
doaj   +1 more source

A novel manganese/iodine-catalyzed Ortoleva-King type protocol for the synthesis of imidazo[1,2-a]pyridines and Zolimidine

open access: yesResults in Chemistry, 2022
The first manganese-iodine catalyzed Ortoleva-King type protocol for the synthesis of imidazo[1,2-a]pyridines has been established. This interesting methodology involves the use of less toxic, readily available and easy to handle MnO2 and molecular ...
Thaipparambil Aneeja   +2 more
doaj   +1 more source

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