Zobrazeno 1 - 10 of 46 pro vyhledávání: '"E. Belgodere"'
1
Condensation ofo-aminophenol and α-dicarbonyl compounds. Part 2. Dibenzoxazolines
Autor: V. Parrini, E. Belgodere, Ricardo Bossio, Roberto Pepino
Publikováno v: Journal of Heterocyclic Chemistry. 14:957-962
The study of 2′-aryl-2,2′-dibenzoxazolines (II), obtained together with 2-hydroxy-(2H)-1,4-benzoxazines (1) by condensation of o-aminophenol with a series of phenylglyoxal derivatives, emphasized that these compounds are an equilibrium mixture of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::03e4c7ad6e2565df29416e429e5cf0bb
https://doi.org/10.1002/jhet.5570140602
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2
Synthesis of imidazole derivatives with potential biological activity
Autor: E. Belgodere, V. Parrini, Ricardo Bossio, Roberto Pepino
Publikováno v: Journal of Heterocyclic Chemistry. 19:561-566
l-Alkylaryl-2-sulfamoylimidazole-5-carboxamides IV, V and VI were prepared starting from methyl l-alkyl-aryl-2-mercaptoimidazole-5-carboxylates I, II and III. Many interesting reaction intermediates such as the l-alkylaryl-2-sulfamoylimidazole-5-carb
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9ebf59a06de496334f8f6231ee9fefc7
https://doi.org/10.1002/jhet.5570190322
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4
Synthesis and fluorescence of some thiazole and benzothiazole derivatives
Autor: Roberto Pepino, Stefano Chimichi, Ricardo Bossio, E. Belgodere, V. Parrini
Publikováno v: Dyes and Pigments. 4:59-71
The optical properties of a series of thiazole and benzothiazole styryl derivatives are reported. The effect of lengthening the conjugative system in several thiazolyl- and benzothiazolyl-vinyl stilbenes which were prepared and tested as fluorescent
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7b9801d9d114022089643361a060a2a2
https://doi.org/10.1016/0143-7208(83)80007-2
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5
Tautomerism of 2-amino-2-oxazolin-4-ones.II
Autor: G. Rapi, Mauro Ginanneschi, Mario Chelli, E. Belgodere
Publikováno v: Journal of Heterocyclic Chemistry. 9:285-292
The study of the tautomerism of 2-amino-2-oxazolin-4-one (1) and its methyl derivatives has been completed. The methylation of 1 gave 2-imino-3-methyloxazolidin-4-one (4) and 2-methyl-amino-2-oxazolin-4-one (7). All attempts to isolate O-methyl deriv
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7e5f724d89078ae66b979d0033039430
https://doi.org/10.1002/jhet.5570090216
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7
Ultraviolet spectra of hydrazones—I
Autor: E. Belgodere, G. Adembri, P. Sarti-Fantoni
Publikováno v: Tetrahedron. 22:3149-3156
The UV spectra of some hydrazones and alkylhydrazones were analysed in order to ascertain the contribution of the nitrogen lone pair to the conjugated system. In addition, the effect of steric hindrance on conjugation in dimethylhydrazones was invest
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::58c3680a63a062f8bb65cea686b27046
https://doi.org/10.1016/s0040-4020(01)82293-6
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8
Condensation of 2-aminophenols and α-dicarbonyl compounds. Part 3. Benzoxazines substituted with heterocycles
Autor: Roberto Pepino, V. Parrini, Ricardo Bossio, E. Belgodere
Publikováno v: Journal of Heterocyclic Chemistry. 17:1625-1627
A series of 1,4-benzoxazines (I) and 2,2′-dibenzoxazolines (II) were obtained by condensation of 2-aminophenol and 2-amino-5-nitrophenol with glyoxal derivatives of the heterocyclic series. The structure of compounds (I) was investigated by uv, pmr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f49a4b1282fa574b5784667965d3c8e
https://doi.org/10.1002/jhet.5570170759
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