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Your search keyword '"tetraarylbisquinazolinones"' showing total 2 results
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2 results on '"tetraarylbisquinazolinones"'

1. 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

Author

Mmakwena M. Mmonwa, Malose J. Mphahlele, Morad M. El-Hendawy, Ahmed M. El-Nahas, and Nobuaki Koga

Subjects
tetrabromobisquinazolinones, Suzuki-Miyaura cross-coupling, tetraarylbisquinazolinones, photophysical properties, Organic chemistry, QD241-441
Abstract

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).

Published
2014
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2. 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.

Author

Mmonwa, Mmakwena M., Mphahlele, Malose J., El-Hendawy, Morad M., El-Nahas, Ahmed M., and Nobuaki Koga

Subjects
QUINAZOLINONES, SUZUKI reaction, INTRAMOLECULAR charge transfer, CHEMICAL derivatives, CHEMICAL synthesis
Abstract

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). [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

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