On November 2, 2021, Yang, Min published a patent.Formula: C13H8BrNO The title of the patent was Preparation of triazine derivatives and their application in OLED. And the patent contained the following:
The present invention relates to preparation of triazine derivatives and their application in OLED. In particular the preparation of compound containing I, II and III (wherein, * represents the connection site of I and II; I is connected to the two adjacent connection points in II; A is the connection site of III; wherein, ring B represents C10-20 aromatic ring; X = S or O; Het = C3-20 heteroarylene group and contains at least two N atoms ; L1, L2 and L3 = a single bond, (un)substituted C6-30 arylene, C3-30 heteroaryl; Ar1, Ar2 and Ar3 = hydrogen, (un)substituted C6-30 aryl or C3-30 heteroaryl groups; the substituents in L1, L2, L3, Ar1, Ar2 and Ar3 = deuterium, halogen, cyano, C3-20 heteroaryl, C6-20 aryl, C1-10 alkyl, C1-10 haloalkyl, C2-10 heterocycloalkyl, C1-10 alkoxy; optionally, in Ar1 and Ar2, any two adjacent substituents form a ring). Further, (R1, R2 and R3 = hydrogen, deuterium, halogen, cyano, C6-C20 aryl, C3-C30 heteroaryl, C3-C12 trialkylsilyl, C1-C10 alkyl, C1-10 haloalkyl, C3-10 cycloalkyl, C2-10 heterocycloalkyl or C1-10 alkoxy; n1 = 1, 2, 3 or 4; when n1 is greater than 1, any two R1s are the same or different, optionally, any two adjacent R1 form a ring; n2 = 1 or 2; when n2 is greater than 1, any two R2s are the same or different, optionally, any two adjacent R2s form a ring; n3 = 1, 2, 3, or 4; when n3 is greater than 1, any two R3s are the same or different, and optionally, any two adjacent R3s form a ring). The inventive triazine compound can effectively improve the light-emitting efficiency of the device, reduce the voltage of the device and prolong the service life of the organic electroluminescent device. The experimental process involved the reaction of 7-Bromo-2-phenylbenzo[d]oxazole(cas: 1268137-13-8).Formula: C13H8BrNO
The Article related to triazine derivative preparation organic electroluminescent device, Heterocyclic Compounds (More Than One Hetero Atom): Triazines and other aspects.Formula: C13H8BrNO
Referemce:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem