Synthesis and Photophysical Properties of the 2-(3-(2-Alkyl-6,8-diaryl-4-oxo-1,2,3,4-tetrahydroquinazolin-2-yl)propyl)-6,8-diarylquinazolin-4(3H)-ones

Autor: Mmakwena M. Mmonwa, Malose J. Mphahlele, Morad M. El-Hendawy, Ahmed M. El-Nahas, Nobuaki Koga
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Molecules, Vol 19, Iss 7, Pp 9712-9735 (2014)
Druh dokumentu: article
ISSN: 1420-3049
DOI: 10.3390/molecules19079712
Popis: Iodine-catalyzed condensation of 2-amino-3,5-dibromobenzamide with cyclohexane-1,3-dione derivatives in refluxing toluene afforded the corresponding bisquinazolinones. Suzuki-Miyaura cross-coupling of the latter with arylboronic acids afforded tetraarylbisquinazolinones. The electronic absorption and emission properties of these tetraarylbisquinazolinones were measured in dimethylsulfoxide (DMSO) and acetic acid by means of UV-Vis and fluorescence spectroscopic techniques in conjunction with quantum chemical methods to understand the influence of substituents on intramolecular charge transfer (ICT).
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