[HTML][HTML] Bioactive 2-pyridone-containing heterocycle syntheses using multicomponent reactions

D Hurtado-Rodríguez, A Salinas-Torres, H Rojas… - RSC …, 2022 - pubs.rsc.org
2-Pyridone-containing heterocycles are considered privileged scaffolds in drug discovery
due to their behavior as hydrogen bond donors and/or acceptors and nonpeptidic mimics …

Advances in the development of phosphodiesterase 7 inhibitors

JX Huang, BL Zhu, JP Xu, ZZ Zhou - European Journal of Medicinal …, 2023 - Elsevier
Abstract Phosphodiesterase 7 (PDE7) specifically hydrolyzes cyclic adenosine
monophosphate (cAMP), a second messenger that plays essential roles in cell signaling …

Hydrogen Atom Transfer (HAT)-Mediated Remote Desaturation Enabled by Fe/Cr–H Cooperative Catalysis

Y Wan, AK Adda, J Qian, DA Vaccaro… - Journal of the …, 2024 - ACS Publications
An iron/chromium system (Fe (OAc) 2, CpCr (CO) 3H) catalyzes the preparation of β, γ-or γ,
δ-unsaturated amides from 1, 4, 2-dioxazol-5-ones. An acyl nitrenoid iron complex seems …

A Light-Promoted Innate Trifluoromethylation of Pyridones and Related N-Heteroarenes

A Dang-Nguyen, KC Legaspi, CT McCarty… - Organic …, 2023 - ACS Publications
We report a practical, light-mediated perfluoroalkylation using Langlois' reagent (sodium
trifluoromethylsulfinate) that proceeds in the absence of any photocatalyst or additives. This …

In-syringe vortex-assisted dispersive liquid–liquid microextraction for determination of copper and vanadium in food samples using a new poly functionalized …

WI Mortada, EA Ghaith, AB Abdallah - Microchemical Journal, 2023 - Elsevier
Traditional liquid-phase extraction procedures are against the principles of green chemistry.
Therefore, it is important to develop eco-friendly procedures. In this study, an in-syringe …

Theoretical investigation of tautomerism of 2-and 4-pyridones: origin, substituent and solvent effects

M Baranac-Stojanović, J Aleksić… - Organic & Biomolecular …, 2024 - pubs.rsc.org
Computational investigation at the BHandHLYP/6-311+ G (d, p) level of theory of the gas-
phase tautomerism of 2-and 4-pyridones confirmed the slight prevalence of lactim in the …

P(NMe2)3-Mediated Regioselective N-Alkylation of 2-Pyridones via Direct Deoxygenation of α-Keto Esters

N Wang, Y Huang, Y Zi, M Wang… - The Journal of Organic …, 2024 - ACS Publications
A practical and regioselective direct N-alkylation of 2-pyridones is enabled by use of α-keto
esters in the P (NMe2) 3-mediated deoxygenation process. The reaction proceeds under …

Palladium-Catalyzed anti-Michael-Type Hydroamination of N-(Quinolin-8-yl)acrylamide with 2-Pyridones

H Suzuki, S Yamanokuchi, R Moro, T Matsuda - Organic Letters, 2024 - ACS Publications
Here we report a palladium-catalyzed anti-Michael-type hydroamination of N-(quinolin-8-yl)
acrylamide with 2-pyridones. The use of a palladium catalyst enables the α-addition of 2 …

[HTML][HTML] The “cesium effect” magnified: exceptional chemoselectivity in cesium ion mediated nucleophilic reactions

S Biswas, WB Hughes, L De Angelis, GC Haug… - Chemical …, 2024 - pubs.rsc.org
Chemodivergent construction of structurally distinct heterocycles from the same precursors
by adjusting specific reaction parameters is an emergent area of organic synthesis; yet …

[HTML][HTML] Regioselective ring opening of aziridine for synthesizing azaheterocycle

N Srivastava, HJ Ha - Frontiers in Chemistry, 2023 - frontiersin.org
Aziridine had different regioselective ring openings depending on the functional group of its
alkyl substituent. In the case of the alkyl group bearing γ-ketone at the C2 substituent of …