On March 12, 2019, Xu, Fawang; Xu, Yulin; Zhang, Heng; Li, Yanlong; Zhang, Xin; Yu, Hao published a patent.Quality Control of 7-Bromo-2-phenylbenzo[d]oxazole The title of the patent was Preparing method and application of umbrella-shaped novel luminescent material containing pyrrole structure. And the patent contained the following:
The invention disclosed a kind of umbrella-shaped novel luminescent material containing pyrrole structure, its preparation method and application. The claimed compound is shown in structure I (Ar = (un)substituted C6-60 aryl, containing one or more N, O, or S (un)substituted heteroaryl). The claimed compound is prepared via multiple steps (procedure given). The prepared compound can be used in OLED with high mol. stability, excellent photoelec. properties, high heat stability, low drive voltage, high efficiency, and long service life. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Quality Control of 7-Bromo-2-phenylbenzo[d]oxazole
The Article related to umbrella shaped pyrrole luminescent substance preparation oled, Heterocyclic Compounds (One Hetero Atom): Pyrroles and Pyrrolizines and other aspects.Quality Control of 7-Bromo-2-phenylbenzo[d]oxazole
Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem