Light emitting material, manufacture method thereof and organic light emitting diode using the light emitting material

Patent metadata

Field	Value
Publication number	US-10208013-B2
Application number	US-201615122417-A
Country	US
Kind code	B2
Filing date	Aug 17, 2016
Priority date	Jul 20, 2016
Publication date	Feb 19, 2019
Grant date	Feb 19, 2019

Abstract

The present invention provides a light emitting material, a manufacture method thereof and an organic light emitting diode using the light emitting material. The structure is unitary, and the formula weight is determined, and the better solubility and film formation are provided, and the thin film status is stable; it possesses a very high decomposition temperature and a lower sublimation temperature, and is easy to sublime to be light emitting material of high purity, and can be applied for small molecule organic light emitting diode. In the manufacture method of the light emitting material according to the present invention, m-bromothiophenol and 4-Bromo-2-fluorobenzonitrile are employed to be starting materials, and the intermediate of the light emitting material is obtained with a series of simple reactions, and finally, the light emitting material is obtained with Ullmann reaction or Suzuki reaction, and the steps are simple and the production is high.

First claim

What is claimed is:

1. A manufacture method of a light emitting material, comprising steps of:
step 1, manufacturing an intermediate

step 2, obtaining light emitting material with Ullmann reaction or Suzuki reaction of the intermediate

and an aromatic amine compound, in which a constitutional formula of the light emitting material is

wherein Ar 1 and Ar 2 are respectively selected from aromatic amine groups shown in formula (1), formula (2), formula (3), formula (4), formula (5), formula (6), formula (7);

wherein the step 1 comprises:
step 11, obtaining

with a reaction of m-bromothiophenol and 4-Bromo-2-fluorobenzonitrile;
step 12, hydrolyzing

in an alkaline condition, and acidizing the same to obtain

step 13, generating dehydration condensation reaction to

to obtain

and
step 14, obtaining the intermediate

with a reaction of

and hydrogen peroxide.

2. The manufacture method of the light emitting material according to claim 1 , wherein Ar 1 and Ar 2 are the same.

3. The manufacture method of the light emitting material according to claim 2 , wherein the light emitting material comprises one or more of following compounds:

Assignees

• Shenzhen China Star Optoelect

Inventors

• Li Xianjie
• Wu Yuanchun
• Su Shijian
• Li Yunchuan

Classifications

• C07D409/14 Primary

  containing three or more hetero rings · CPC title

• C07D417/00

  Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group C07D415/00 · CPC title

• C09K2211/1037

  with sulfur · CPC title

• C09K2211/1092

  containing sulfur as the only heteroatom · CPC title

• H01L51/0072

  Electricity · mapped topic