Results 1 to 10 of about 10,137 (277)

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

Pharmacological management of nystagmus: An in-depth review for clinical practice

open access: yesOman Journal of Ophthalmology
Nystagmus, characterized by involuntary ocular movements, presents significant challenges in both congenital and acquired forms, often significantly impacting visual acuity and quality of life.
Hassan Asadigandomani   +4 more
doaj   +2 more sources

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

Crystal Structures and Physicochemical Properties of 3-Chloro-4-hydroxyphenylacetic Acid Salts with Amines

open access: yesMolecules, 2023
3-chloro-4-hydroxyphenylacetic acid (CHPAA) is a fungal metabolite. It is a small molecule that is useful in crystal engineering studies due to the functional groups present. Six amines were selected to form salts with CHPAA.
Remi Rolland Ngoma Tchibouanga   +1 more
doaj   +1 more source

Dual-State Emission of 2-(Butylamino)Cinchomeronic Dinitrile Derivatives

open access: yesMolecules, 2022
New representatives of 2-(butylamino)cinchomeronic dinitrile derivatives were synthesized as promising fluorophores showing dual-state emission. To characterize the influence of the length (from methyl to butyl) and the structure (both linear and ...
Konstantin V. Lipin   +3 more
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

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

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

4-Aminopyridine — A Review [PDF]

open access: yesAnaesthesia and Intensive Care, 1982
4-aminopyridine is the first of the aminopyridines to be used in clinical practice. It blocks potassium channels and thereby increases acetylcholine, and possibly noradrenaline, release at nerve terminals. In man the drug has a significant action at the neuromuscular junction, but has little effect on the autonomic nervous system or muscle (smooth ...
N, Soni, P, Kam
openaire   +2 more sources

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