Results 41 to 50 of about 8,502 (208)

Ester-Amide Exchange Reactions Using 2-Pyridone derivatives as Tautomeric Catalysts [PDF]

open access: yes
The application of 2-pyridone as a tautomeric catalyst for ester-amide exchange reactions was investigated. This compound was found to be most effective at accelerating these reactions when 4-nitrophenyl acetate was used as an acylating agent in toluene.
Misao, Yotsuji   +3 more
core   +2 more sources

Aldol elaboration of 4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridin-4-ones, masked precursors to acylpyridones

open access: yesBeilstein Journal of Organic Chemistry, 2012
A core 4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridine-4-one scaffold is elaborated at C-3(Me) by base-mediated aldol condensation to give new 3-alkenyl-4,5,6,7-tetrahydroisoxazolo[4,3-c]pyridine-4-ones, which are masked forms related to the acylpyridone ...
Raymond C. F. Jones   +5 more
doaj   +1 more source

Continuous flow synthesis of some 6- and 1,6-substituted 3-cyano-4-methyl-2-pyridones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2019
In this study, six 6- and 1,6-substituted-3-cyano-4-methyl-2-pyridones were synthesized in a continuous flow microreactor system. The syntheses were realized at room temperature and the obtained results were compared to those achieved within classical ...
Tadić Julijana   +3 more
doaj   +1 more source

Unveiling the Potential of Metal and Non‐Metal Modified Porous Carbon for the Electrochemical Reduction of CO2

open access: yesCarbon Energy, EarlyView.
Earth‐abundant metal‐ and non‐metal‐modified porous carbons offer a highly tunable platform for electrochemical CO2 reduction. This review shows how electronic interactions, active‐site coordination, pore architecture, and cooperative catalytic effects jointly govern intermediate stabilization, product selectivity, and device‐relevant CO2RR performance.
Hussein A. Younus   +4 more
wiley   +1 more source

Biological evaluation of pyridone alkaloids on the endocannabinoid system [PDF]

open access: yes, 2017
Naturally occurring pyridone alkaloids as well as synthetic derivatives were previously shown to induce neurite outgrowth. However, the molecular basis for this biological effect remains poorly understood.
Marck, Nicolas   +16 more
core   +2 more sources

Biosynthesis of (–)-Sambutoxin, a Fusarium 2-Pyridone Alkaloid Mycotoxin [PDF]

open access: yes, 2021
This dissertation describes the discovery by genome mining and the characterization of thebiosynthetic pathway for sambutoxin, a 4-hydroxy-2-pyridone alkaloid Fusarium mycotoxin.
Go, Louise
core   +1 more source

Ambident Reactivities of Pyridone Anions

open access: yes, 2016
The kinetics of the reactions of the ambident 2- and 4-pyridone anions with benzhydrylium ions (diarylcarbenium ions) and structurally related Michael acceptors have been studied in DMSO, CH3CN, and water.
Herbert Mayr (1353507)   +1 more
core   +2 more sources

SYNTHESIS AND ANTIHYPERLIPIDEMIC ACTIVITY OF CERTAIN NICOTINIC ACID DERIVATIVES [PDF]

open access: yesBulletin of Pharmaceutical Sciences. Assiut University, 2005
3-Ethoxycarbonyl-4,6-dimethyl-2(1H)-pyridone I was prepared and converted to the corresponding sodium salt II. The latter reacted with certain chloroacetanilides to afford the corresponding ethers III.
Mohamed Abdel-Wahab   +1 more
doaj   +1 more source

Stereoretentive Nucleophilic Aromatic Substitution Accesses Atropisomeric 4‐Amino‐N‐Arylquinolinium Salts

open access: yesChemistry – A European Journal, EarlyView.
Quinolin‐4‐ones were converted to chloroquinolinium salts, allowing formation of axially chiral aminoquinolinium salts via an enantioretentive SNAr reaction with a variety of amine nucleophiles. The salts have a high rotational barrier, with a racemization half‐life of ∼1000s of years.
Darren Holmes   +5 more
wiley   +1 more source

Synthesis of 2-Pyridone Derivatives Bearing an Electron-withdrawing Group on Nitrogen [PDF]

open access: yes, 2007
1-Protected 2(1H)-pyridones are highly useful dienophiles because Diels-Alder reaction of 1-sulfonyl-2(1H)-pyridones gave the synthetic intermediate such as quinoline and isoquinoline derivatives.
渡邉, 一弘   +8 more
core  

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