Results 221 to 230 of about 10,212 (248)
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New Synthetic Methods for 2‐Pyridone Rings
ChemInform, 2005AbstractFor Abstract see ChemInform Abstract in Full Text.
Salvador Gil +2 more
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Tautomerism and Microsolvation in 2-Hydroxypyridine/2-Pyridone
The Journal of Physical Chemistry A, 2010The 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 +6 more
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Enantioselective Photochemical Reactions of 2-Pyridones in Solution
Organic Letters, 2001[reaction: see text] Two key photochemical reactions of prochiral 2-pyridones were studied in the presence of a chiral host. The [4 + 4]-photocycloaddition with cyclopentadiene (CpH) proceeded smoothly and with high enantioselectivity (84-87% ee). The absolute configuration of the endo-diastereoisomer was established by X-ray crystallography.
Thorsten Bach +2 more
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Hybrid density functionals and ab initio studies of 2-pyridone–H2O and 2-pyridone–(H2O)2
Chemical Physics Letters, 2000Abstract Theoretical calculations have been carried out on the interaction between water and the carbonyl base 2-pyridone. The calculations have been performed with two hybrid density functionals (B3-PW91 and B3-LYP). The comparison with experimental gas phase data as well as with results from the ab initio methods RHF and MP2 shows good performance ...
Ahmed Dkhissi +2 more
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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
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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
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Nitration of 1-methyl-2-pyridone
Chemistry of Heterocyclic Compounds, 1973Nitration 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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Chemistry of Heterocyclic Compounds, 1974 Chemistry of Heterocyclic Compounds, 1972
N. P. Shusherina, T. I. Likhomanova
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N. P. Shusherina, T. I. Likhomanova
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The photoreactions of N-methyl-2-pyridone
1970In studying the photochemistry of N-methyl-2- pyridone, four products were observed. Besides the previously known dimer and bicyclic monomer, two new dimers were isolated. The quantum yields of product formation were measured, and it was found that only one intermediate was involved.
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2‐Pyridon‐Mesogene; 2‐Pyridon‐5‐carbonsäure‐ester
Zeitschrift für Chemie, 1978Wolfgang Weissflog +4 more
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