《Facile synthesis of extended TPA-quinazolinone derivatives and the nonlinear optical properties》 was written by Zheng, Mingming; Zhang, Jiuming; Wang, Wenbiao; Gao, Jianrong; Jia, Jianhong. SDS of cas: 624-28-2This research focused ontriphenylamine quinazolinone derivative synthesis Suzuki cross coupling reaction; fluorescence photophys nonlinear optical property. The article conveys some information:
In this work, four new quinazolinone (QZ)-based compounds containing triphenylamine (TPA) moiety have been synthesized, defined as QZC, QZC-1, QZC-2, QZC-3, for the application of third-order nonlinear optical (NLO) responses. A new design of two-step synthesis has been put forward, the first step is Ullmann reaction with QZ, and the second is connecting QZ and the substituted triphenylamines (TPAs) through a Suzuki cross-coupling reaction to afford the target products. Electrochem. measurement data indicated that the tuning of the HOMO and LUMO energy levels can be easily achieved by introducing and modifying the donor moiety. The NLO properties were evaluated by the Z-scan technique which showed that introduction of a benzene ring as a π bridge could reduce the transmission energy of electrons from a ground state to an excited state, and the added methoxy in TPA moiety could promote the ICT, and improve the third-order NLO properties of mols. Theor. calculations matched well with the electrochem. information and NLO information. The results suggest that the materials based on QZ have potential applications in integrated NLO devices. In the experiment, the researchers used 2,5-Dibromopyridine(cas: 624-28-2SDS of cas: 624-28-2)
2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridine-based materials are valued for their optical and physical properties as well as their medical potential. Additionally, pyridine-based natural products continue to be discovered and studied for their properties and to understand their biosynthesis.SDS of cas: 624-28-2