Results 51 to 60 of about 12,719 (269)

3-Cyano-4,6-dimethyl-2-pyridone (Guareschi pyridone)

open access: yesActa Crystallographica Section E Structure Reports Online, 2004
In the crystal structure of the title compound, C8H8N2O, the mol­ecules form centrosymmetric dimers via N—H⋯O hydrogen bonds.
Victor B. Rybakov   +3 more
openaire   +2 more sources

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

open access: yesIranian 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  

Synthesis of Some Novel Heterocyclic and Schiff Base Derivatives as Antimicrobial Agents

open access: yesMolecules, 2015
Treatment of 2,3-diaryloxirane-2,3-dicarbonitriles 1a–c with different nitrogen nucleophiles, e.g., hydrazine, methyl hydrazine, phenyl hydrazine, hydroxylamine, thiosemicarbazide, and/or 2-amino-5-phenyl-1,3,4-thiadiazole, afforded pyrazole, isoxazole ...
Mohamed E. Azab   +2 more
doaj   +1 more source

Quinolones modulate ghrelin receptor signaling: potential for a novel small molecule scaffold in the treatment of cachexia [PDF]

open access: yes, 2018
Cachexia is a metabolic wasting disorder characterized by progressive weight loss, muscle atrophy, fatigue, weakness, and appetite loss. Cachexia is associated with almost all major chronic illnesses including cancer, heart failure, obstructive ...
Cano, Rafael   +8 more
core   +3 more sources

2-Pyridone: monoclinic polymorph [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2009
تتكون الوحدة غير المتماثلة في مركب العنوان، C(5)H(5)NO، من جزيئتين مستقلتين ولكن متطابقتين تقريبًا من 2 -بيريدون، وتمثل شكلًا متعددًا أحادي الميل من شكل أورثو- روم- بيك (P2 (1)2(1)2(1)) [Penfold (1953▶). أكتا كريست .6، 591-600 ؛ أومس وآخرون. (1984▶). Z. Kristallogr.169، 185-200 ؛ Yang & Craven (1998▶). أكتا كريست. B54، 912-920]. ترتبط الحبيبات الجزيئية
Hadi D. Arman   +2 more
openaire   +4 more sources

Crystal structure of 2,6-dimethyl-4-pyridone hemihydrate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2015
The title compound (systematic name: 2,6-dimethyl-1H-pyridin-4-one hemihydrate), C7H9NO·0.5H2O, has a single planar molecule in the asymmetric unit with the non-H atoms possessing a mean deviation from planarity of 0.021 Å.
Dalena M. Nguyen   +3 more
doaj   +1 more source

Enzymatic synthesis of vitamin B6 precursor [PDF]

open access: yes, 2013
3-Cyano-4-ethoxymethyl-6-methyl-2-pyridone is an important precursor in the synthesis of vitamin B6, obtained in the addition reaction between 2-cyanoacetamide and 1-ethoxy-2,4-pentanedione catalyzed by lipase from Candida rugosa ...
Bezbradica Dejan I.   +4 more
core   +1 more source

Pyridonderivate aus 3-Amino-2H-azirinen und Cyclopropenonen

open access: yesCHIMIA, 1978
Reaction of the 3-dimethylamino-2H-azirines 1a and 1b with diphenylcyclopropenone (2a) in ether or acetonitrile leads to the 2-dimethylamino-5,6-diphenyl-4(3H)-pyridones 3a and 3b in 70 and 80% yield, respectively. The structure of these 1:1-adducts has
Stanislav Chaloupka, Heinz Heimgartner
doaj   +1 more source

Recent Progress in Nitro-Promoted Direct Functionalization of Pyridones and Quinolones

open access: yesMolecules, 2020
Nitro group is one of the most important functional groups in organic syntheses because its strongly electron-withdrawing ability activates the scaffold, facilitating the reaction with nucleophilic reagents or the Diels−Alder reaction.
Feiyue Hao, Nagatoshi Nishiwaki
doaj   +1 more source

Chemical Cryptology of Cancer’s Histone Code [PDF]

open access: yes, 2014
Somatic mutations in non-Hodgkin's lymphoma frequently activate EZH2, a protein methyltransferase responsible for H3K27 trimethylation. In this issue of Chemistry and Biology, Bradley and coworkers describe a new set of EZH2 inhibitors amenable to ...
Kulkarni, Rhushikesh A.   +1 more
core   +1 more source

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