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

Molecules

Mmakwena M. Mmonwa³  Malose J. Mphahlele³  Morad M. El-Hendawy²  Ahmed M. El-Nahas¹ 

[1] Chemistry Department, Faculty of Science, El-Menoufia University, Shebin El-Kom 32512, Egypt; E-Mail:;Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt; E-Mail:;Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa; E-Mail:

关键词: tetrabromobisquinazolinones;    Suzuki-Miyaura cross-coupling;    tetraarylbisquinazolinones;    photophysical properties;   

DOI  :  10.3390/molecules19079712

来源: mdpi

【 摘 要 】

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).

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.