Results 101 to 110 of about 12,719 (269)
ChemistryOpen, 2020 1,2,4‐Oxadiazole[4,5‐a]piridinium salts add alcohols and alkoxides to undergo electrocyclic ring opening affording alkoxybutadienyl 1,2,4‐oxadiazole derivatives.
Dr. Mattia Moiola +2 more
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Two Polymorphs of Bis(4-methoxyphenyl)tellurium(IV) Diiodide [PDF]
, 1998 The title compound, (C7H7O)2Tel2 (orC14H14I2O2Te), crystallizes in space group P1, either with Z = 8, (Ia), or Z = 4, (Ib). The six independent molecules [four in (Ia) and tow in (Ib)] have very similar structures.
Alvarez-Larena, Angel +5 more
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Zur Constitution der α‐Pyridone [PDF]
Berichte der deutschen chemischen Gesellschaft, 1903 n ...
openaire +3 more sources
Regioselective reactions of 3,4-pyridynes enabled by the aryne distortion model. [PDF]
, 2013 The pyridine heterocycle continues to play a vital role in the development of human medicines. More than 100 currently marketed drugs contain this privileged unit, which remains highly sought after synthetically. We report an efficient means to access di-
Garg, Neil K, Goetz, Adam E
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Sinteza, struktura i solvatohromizam novih 5-(4-supstituisanih fenilazo)-4-(4-supstituisanih fenil)-6-hidroksi-3-cijano-2-piridona [PDF]
, 2013 Three series of some novel arylazo pyridone dyes, 5-arylazo-6-hydroxy-4-phenyl- 3-cyano-2-pyridone dyes, 5-arylazo-6-hydroxy-4-(4-metoxyphenyl)-3-cyano-2-pyridone dyes and 5-arylazo-6-hydroxy-4-(4-nitrophenyl)-3-cyano-2-pyridone dyes have been ...
Alimmari, Adel S.
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Kristallstruktur eines 2-Dimethylamino-3,3-dimethyl-4(3H)-pyridons
CHIMIA, 1982 3-Dimethylamino-2,2-dimethyl-2H-azirine (1) reacts with alkyl phenyl substituted cyclopropenones 2 in benzene at 130 °C to give a mixture of the two isomeric 4(3H)-pyridones 3 and 4, resulting from a nucleophilic attack at C(2) and C(1) of the ...
Jost H. Bieri +2 more
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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 +2 more
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Solution Equilibrium Studies on Anticancer Ruthenium(II)–eta6-p-cymene Complexes of 3-Hydroxy-2(1H)-pyridones [PDF]
, 2013 Ru-II(eta(6)-p-cymene) complexes of bidentate (0,0) alkoxycarbonylmethyl-3-hydroxy-2(1H)-pyridone ligands exhibit in vitro antitumor activity. We determined the stoichiometry and stability in aqueous solution of two examples by pH-potentiometry, H-1 NMR ...
Bognár, Gabriella M. +4 more
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Drug Design, Development and Therapy, 2017 Galal Elgemeie,1 Farag Altalbawy,2,3 Mohammed Alfaidi,3 Rania Azab,2,4 Atef Hassan5 1Department of Chemistry, Faculty of Science, Helwan University, Helwan, 2National Institute of Laser Enhanced Sciences (NILES), Cairo University, Giza, Egypt ...
Elgemeie G +4 more
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ChemistryOpen, 2019 1,2,4‐Oxadiazole[4,5‐a]piridinium chloride adds nucleophiles to undergo electrocyclic ring opening affording 1,2,4‐oxadiazole dienamino derivatives. These pyridinium salts represent a special class of Zincke salts that are prone to rearrange when treated
Dr. Stefano Carella +2 more
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