title: 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.
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).
authors.affiliation: Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa. mmonwmm@unisa.ac.za.
authors.forename: Mmakwena M
authors.initials: MM
authors.lastname: Mmonwa
authors.affiliation: Department of Chemistry, College of Science, Engineering and Technology, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa. mphahmj@unisa.ac.za.
authors.forename: Malose J
authors.initials: MJ
authors.lastname: Mphahlele
authors.affiliation: Chemistry Department, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt. Morad.elhendawy@yahoo.com.
authors.forename: Morad M
authors.initials: MM
authors.lastname: El-Hendawy
authors.affiliation: Chemistry Department, Faculty of Science, El-Menoufia University, Shebin El-Kom 32512, Egypt. amelnahas@hotmail.com.
authors.forename: Ahmed M
authors.initials: AM
authors.lastname: El-Nahas
authors.affiliation: Graduate School of Information Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan. koga@is.nagoya-u.ac.jp.
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Koga
mesh_terms: D055668:Photochemical Processes; D052999:Quinazolinones / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D052999:Quinazolinones