Results 61 to 70 of about 10,212 (248)

Synthesis of Some New Enaminoketones, Analogous of Milrinone, 4,Pyrones and Related 4-Pyridones [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 1996
Synthesis of 4-(N,N- dimethylamino)-3-aryl-3-butene-2-one, ethyl-5-aryl-4-oxo-4H-pyran-2-carboxylate, ethyl-5-aryl-4-pyridones-2-carboxylate and 5-aryl-3-cyano-5-methyl-2-pyridones (aryl=3-thienyl, 2-furyl) are described.
Aziz Shahrisa, Salar Hemmati
doaj  

SYNTHETIC ROUTES AND NATURAL SOURCES OF 2-PYRIDONE DERIVATIVES AND THEIR PHARMACOLOGICAL ACTIVITY [PDF]

, 2017
Objective: 2-pyridone is a well-known heterocyclic ring having significant biological and medical application. The molecular structures and various activities of 2-pyridone derivatives as well as their syntheses and natural occurrence are analyzed and ...
M, Vijey Aanandhi, MISHRA, PREM SHANKAR, V, Ravichandiran   +2 more
core   +1 more source

6-Methyl-2-pyridone pentahydrate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2004
Crystals of the title compound, C6H7NO·5H2O, were grown over a period of several weeks from an aqueous solution of the commercial compound. The mol­ecule crystallizes in space group P\overline 1 and there are two independent 6-methyl-2-pyridone (Hmhp) mol­ecules in the asymmetric unit, together with ten mol­ecules of water.
Clegg W, Nichol GS
openaire   +2 more sources

Shedding Light on the Precatalytic Mixture of Pd(OAc)2 and Cooperating Bipyridone Ligands for the C─H Functionalization of Arenes

ChemCatChem, EarlyView.
The reactions of the common palladium precursors Pd(OAc)2 and PdCl2 and cooperating bipyridone ligands leads to well defined complexes which are general precatalysts for the direct C─H arylation of arenes, more active than Pd(OAc)2/ligand mixtures in nonpolar solvents.
Francisco Villalba, Sara Martín‐Martín, Ana C. Albéniz   +2 more
wiley   +1 more source

Crystal structure of N-[6-amino-5-(benzo[d]thiazol-2-yl)-3-cyano-4-methylsulfanyl-2-oxo-1,2-dihydropyridin-1-yl]-4-methylbenzenesulfonamide dimethylformamide monosolvate

Acta Crystallographica Section E: Crystallographic Communications, 2017
In the title compound, C21H17N5O3S3·C3H7NO, the toluenesulfonamide ring and the combined ring system involving the pyridone and benzothiazole rings subtend an interplanar angle of 39.86 (4)°.
Rasha A. Azzam, Galal H. Elgemeie, Rasha E. Elsayed, Peter G. Jones   +3 more
doaj   +1 more source

Advances in Ligand‐Driven Pd‐Catalyzed C─H Functionalizations: Recent Insights and Updates

ChemCatChem, EarlyView.
The most significant advances in ligand‐driven Pd‐catalyzed organic synthesis over the past two years are presented. Processes involving C─H activation of substrates, avoiding their prefunctionalization are illustrated. Both the activity and selectivity of the catalyst depend on the design of the ligands (pyridones, pyridines, amino acids, phosphines ...
Jesús Moradell, Cosmina Bohan, Alexandra Pop, Esteban P. Urriolabeitia   +3 more
wiley   +1 more source

A chemical ionization study of deuteron transfer initiated propene loss from propoxypyridines [PDF]

, 2003
The mechanism of propene loss from the metastable [M + D]+ ions of isomeric 2-, 3-, and 4-n-propoxypyridines and the related isopropoxypyridines has been examined by chemical ionization (CI) and tandem mass spectrometry in combination with deuterium ...
Ingemann, Steen, Molenaar-Langeveld, Tineke A., van Beelen, Eric S.E.   +2 more
core   +1 more source

Electronic Conductive Metal–Organic Frameworks for Aqueous Rechargeable Zinc‐Ion Battery Cathodes: Design, Progress, and Prospects

Carbon Energy, EarlyView.
Schematic of the working principle of aqueous ZIBs and the benefits of electronic conductive metal–organic frameworks (EC‐MOFs) as cathode materials. ABSTRACT Zinc‐ion batteries (ZIBs) have significant potential for advancements in energy storage systems owing to their high level of safety and theoretical capacity. However, ZIBs face several challenges,
Chuntao Yang, Youlin Xiang, Yingjian Yu
wiley   +1 more source

3,4-and 3,5-disubstituted 2-pyridones using an intermolecular cycloaddition/cycloreversion strategy: toward the synthesis of aristopyridinone A [PDF]

, 2015
The intermolecular cycloaddition of pyrazinone precursors with alkyne substrates was evaluated. The resulting regioisomeric [2.2.2]-diketopiperazine alkene cycloadducts were diverted into 2-pyridone products through cycloreversion of the [2.2.2]-bicyclic
Leibowitz, Maren K., Scheerer, Jonathan R., Winter, Ethan S.   +2 more
core   +2 more sources

catena-Poly[[(nitrato-κ2O,O′)silver(I)]-μ3-4-pyridone-κ3O:O:O]

Acta Crystallographica Section E, 2009
In the title complex, [Ag(NO3)(C5H5NO)]n, the AgI atom is coordinated by two O atoms from two different 4-pyridone ligands and two O atoms from one nitrate anion, displaying a nearly planar coordination geometry.
Xian-Ge Wu, Jun-Xia Xiao, Liang Qin
doaj   +1 more source