Synthesis and electronic spectra of 3-hetaryl substituted coumarin derivatives 7-hydroxy-2H-chromen-2-on and 9-hydroxy-2H-benzo(f)chromen-2-on / Todor Deligeorgiev in COLORATION TECHNOLOGY, Vol. 124, N° 4 (2008)  

[article]  inCOLORATION TECHNOLOGY > Vol. 124, N° 4 (2008) . - p. 195-203 Titre : Synthesis and electronic spectra of 3-hetaryl substituted coumarin derivatives 7-hydroxy-2H-chromen-2-on and 9-hydroxy-2H-benzo(f)chromen-2-on Type de document : texte imprimé Auteurs : Todor Deligeorgiev, Auteur ; Teodora Tsvetkova, Auteur ; Diana Ivanova, Auteur ; Iliana Timtcheva, Auteur Année de publication : 2009 Article en page(s) : p. 195-203 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : The synthesis of 3-hetaryl substituted coumarin derivatives [7-hydroxy-2H-chromen-2-on and 9-hydroxy-2H-benzo(f)chromen-2-on] containing a hydroxyl group by reacting 2,4-dihydroxybenzaldehyde and 2,4-dihydroxynaphtaldehydes with 2-cyanomethylbenzothiazole, 2-cyanomethylbenzimidazole, 1-methyl-2-cyanomethylbenzimidazole and 2-cyanomethyl-4-phenylthiazole is presented. The absorption and steady-state fluorescence characteristics of the synthesised 3-hetaryl substituted 7-hydroxy-2H-chromen-2-on and 9-hydroxy-2H-benzo(f)chromen-2-on in a solution of ethanol and at different pH values are studied to assess their possible application as fluorescent probes for use in molecular biology and medicine. DOI : 10.1111/j.1478-4408.2008.00141.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2008.00141.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3164 [article]

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Synthesis of novel 3-hetaryl-substituted 6- and 8-hydroxybenzo[f]coumarin derivatives / Todor Deligeorgiev in COLORATION TECHNOLOGY, Vol. 126, N° 4 (2010)  

[article]  inCOLORATION TECHNOLOGY > Vol. 126, N° 4 (2010) . - p. 209-214 Titre : Synthesis of novel 3-hetaryl-substituted 6- and 8-hydroxybenzo[f]coumarin derivatives Type de document : texte imprimé Auteurs : Todor Deligeorgiev, Auteur ; Teodora Tsvetkova, Auteur ; Stefka Kaloyanova, Auteur ; Diana Ivanova, Auteur ; Iliana Timtcheva, Auteur Année de publication : 2010 Article en page(s) : p. 209-214 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 667.3 Teinture et impression des tissus Résumé : Eight novel 3-hetaryl-substituted 6- and 8-hydroxybenzo[f]iminocoumarin compounds were synthesised by the reaction of 2,5-dihydroxynaphthaldehydes or 2,7-dihydroxynaphthaldehydes with 2-cyanomethylbenzo-thiazole, 2-cyanomethylbenzoimidazole, 1-methyl-2-cyanomethylbenzoimidazole and 2-cyanomethyl-4-phenylthiazole. The iminocompounds obtained were hydrolysed with hydrochloric acid to the benzo[f]coumarins. Becaue of the high reactivity of the iminocoumarins, only mixtures which also contained the corresponding coumarin compounds were isolated. The absorption and steady-state fluorescence characteristics of the benzo[f]coumarins (benzo[f]chromen-2-ones) synthesised were studied in ethanol and in toluene. Note de contenu : EXPERIMENTAL : Synthesis of 3-hetarylbenzo[f]iminocoumarin compounds - Synthesis of 3-hetarylbenzo[f]coumarin. RESULTS AND DISCUSSION : Synthetic procedure of 3-hetaryl-6- and 8-hydroxybenzo[f]coumarins - Absorption and fluorescent properties of 3-hetaryl-6- and _-hydroxybenzo[f]coumarins. DOI : 10.1111/j.1478-4408.2010.00249.x En ligne : http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2010.00249.x/pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=9873 [article]

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