235426-32-1Relevant articles and documents
COMPOUNDS COMPRISING N-METHYL-2-PYRIDONE, AND PHARMACEUTICALLY ACCEPTABLE SALTS
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Page/Page column 78, (2020/12/30)
The present invention concerns compounds comprising N-methyl-2-pyridone, and pharmaceutically-acceptable salts and compositions of such compounds. Such compounds are useful in anti-inflammatory and anti-cancer therapies. Therefore, the present invention also concerns such compounds for use as medicaments, particularly for the treatment of inflammatory diseases and oncology.
Synthesis and electrochemical evaluation of 2-substituted imidazolium salts
Hogan, David T.,Sutherland, Todd C.
supporting information, (2018/03/22)
Herein, we report the synthesis, electrochemical, and computational evaluation of six 2-substituted imidazolium bromides and six 2-substituted imidazolium triflates. All final compounds were obtained in 2 or fewer synthetic steps from inexpensive starting
Photochemical intramolecular aromatic substitutions of the imidazol-2-yl radical are superior to those mediated by Bu3SnH
Clyne, Mairead A.,Aldabbagh, Fawaz
, p. 268 - 277 (2007/10/03)
Six-membered photochemical cyclisations of 2-iodo-N-(2-arylethyl)imidazoles proceeded regioselectively in higher yields than the equivalent tin hydride-mediated reactions. The decrease in yield of cyclisation products, 5,6-dihydroimidazo[2,1-a]isoquinolines containing strongly deactivating substituents on the aryl ring confirmed the electrophilic nature of the σ-imidazol-2-yl radicals. The seven-membered cyclisation was only successful under photochemical conditions, as radical reduction occurred with tin hydride. Nitration of 5,6-dihydroimidazo[2,1-a]isoquinoline with nitric/sulfuric acid occurred at the 2- and 8-positions. The Royal Society of Chemistry 2006.
Reaction of imidazoles with cyanogen bromide: Cyanation at N 1 or bromination at C 2?
McCallum, Peter B.W.,Weavers, Rex T.,Grimmett, M. Ross,Blackman, Allan G.
, p. 159 - 165 (2007/10/03)
The reaction in acetonitrile solution of a number of imidazoles (1H-, 1-methyl-, 2-methyl-, 4-methyl-, 1,2-, 1,4- and 1,5-dimethyl-, 1-ethyl-, 1-benzyl- and 1-butyl-imidazole) and imidazole complexes ([Co(NH3)5(imH)](ClO4)3, [Co(NH3)5(im)] (ClO4)2 and [Co(NH3)5(1-Meim)] (ClO4)3) with BrCN has been studied. Those imidazoles bearing an N-alkyl substituent and having a hydrogen at C2 react to give the 2-bromo products, while the N-H imidazoles react to give W-cyano derivatives. The product(s) from the reaction of 1,2-dimethylimidazole with BrCN could not be characterized. Of the complexes, only [Co(NH3)5(im)] (ClO4)2 reacts, giving the 2-bromo product. Our observations suggest a lone pair on a ring nitrogen atom is necessary for an imidazole to react with BrCN, and a possible mechanism is suggested. The X-ray structure of 2-methylimidazole-1-carbonitrile is reported. Crystal data (-143°C) for C5H5N3: monoclinic, P21/c, a 10.201(5), b 7.110(3), c 7.227(3) A, β 100.47(2)°, V 515.4(4) A3, Z 4, dcalcd 1-380 g cm-3. Refinement of the structure converged with R1 0.0444 for 1183 reflections with Fo > 4F(Fo) and ωR2 0.1259 for all 1278 data.