Results 171 to 180 of about 6,930 (204)

ChemInform Abstract: Developments in the Chemistry of 2‐Pyridone

ChemInform, 2014
AbstractReview: [53 refs.
M. A. Waly, Ibrahim I. EL-Hawary, Wafaa S. Hamama, Hanafi H. Zoorob   +3 more
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Charge Density Study of 2-Pyridone

Acta Crystallographica Section B Structural Science, 1998
The crystal structure of 2-pyridone has been redetermined from high-resolution X-ray data collected at 123 K. The molecule is in the lactam form. Bond lengths (corrected for rigid-body libration) and angles have been determined with s.u.'s of 0.001 Å and 0.1°, respectively.
H. W. Yang, B. M. Craven
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ChemInform Abstract: Cycloaddition Reactions of 4‐Sulfur‐Substituted Dihydro‐2‐pyridones and 2‐Pyridones with Conjugated Dienes.

ChemInform, 2008
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Shang-Shing P. Chou, Pong-Won Chen
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ChemInform Abstract: PHOTOISOMERIZATION OF 4‐PYRIDONES TO 2‐PYRIDONES

Chemischer Informationsdienst, 1974
AbstractBestrahlung (Hg‐Mitteldrucklampe) der 4‐Pyridone (I) liefert die isomeren 2‐Pyridone (II) als Hauptprodukte, während die 4‐Pyridone (III) unter gleichen Bedingungen unverändert bleiben.
Nobuyuki Ishibe, Jun Masui
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Infrared spectra of 2-pyridone-¹⁶O and 2-pyridone-¹⁸O

Canadian Journal of Chemistry, 1968
A comparison of the infrared spectra of natural 2-pyridone with that of the oxygen-18 labelled compound indicated modest shifts not only for the CO stretching mode (8.3−17.8 cm−1) for the various species in solution, but also for ring modes (0−13 cm−1) indicating a considerable mixing of the vibrations.
Charles L. Bell, Ludwig Bauer, G. H. Keller   +2 more
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ChemInform Abstract: BROMINATION OF 1‐ALKYL‐2‐PYRIDONES

Chemischer Informationsdienst, 1982
AbstractDie Bromierung der N‐Alkylpyridone (I) mit Dioxandibromid oder N‐Bromsuccinimid führt zu Gemischen der Monobromderivate (II).
T. I. Likhomanova, N. P. Shusherina, S. N. Nikolaeva   +2 more
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New Synthetic Methods for 2‐Pyridone Rings

ChemInform, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Salvador Gil, Mercedes Torres, Margarita Parra   +2 more
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Tautomerism and Microsolvation in 2-Hydroxypyridine/2-Pyridone

The Journal of Physical Chemistry A, 2010
The Fourier transform microwave spectra of the hydrated forms of the tautomeric pair 2-pyridinone/2-hydroxypyridine (2PO/2HP) have been investigated in a supersonic expansion. Three hydrated species, 2PO-H₂O, 2HP-H₂O, and 2PO-(H₂O)₂, have been observed in the rotational spectrum.
S. Mata, V. Cortijo, CAMINATI, WALTHER, J. L. Alonso, M. E. Sanz, J. C. López, S. Blanco   +6 more
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Nitration of 1-methyl-2-pyridone

Chemistry of Heterocyclic Compounds, 1973
Nitration of 1-methyl-2-pyridone with 70% nitric acid or fuming nitric acid at 0–20°C proceeds in the 3 and 5 positions to give a mixture of mononitro isomers, the structures of which were proved by PMR spectroscopy. Mainly 3,5-dinitro-1-methyl-2-pyridone is formed by the action of fuming nitric acid or a nitrating mixture at 90°.
T. I. Likhomanova, N. P. Shusherina
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Über 6‐Thiazolyl‐2‐pyridone

Helvetica Chimica Acta, 1961
6‐Thiazolyl‐2‐pyridones, a new class of chelating agents of the bipyridyl type, have been synthesized from the thioamide of 2‐pyridone‐6‐carboxylic acid; the latter has been obtained starting from the acid via the ethyl ester, amide and nitrile.
I. Steffan, Bernhard Prijs
openaire   +2 more sources