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Anthryl derivative and preparation thereof

A technology of anthracenyl derivatives and anthracenisoalcohol, which is applied in the field of organic electroluminescence, can solve problems such as poor stability, steric hindrance, or unsaturated coordination number, and achieve high stability, extended service life, and improved color saturation degree of effect

Active Publication Date: 2009-07-08
HEBEI DELONGTAI CHEM
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Problems solved by technology

[0012] In view of the current research status of blue organic electroluminescent materials, the problem solved by the present invention is that when blue electroluminescent materials are doped with fluorescent dyes to achieve blue light emission, the stability is caused by steric hindrance or unsaturated coordination number. To solve the poor problem, provide a blue organic electroluminescent material with high purity, high yield, simple synthesis method and high stability and its preparation method

Method used

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  • Anthryl derivative and preparation thereof
  • Anthryl derivative and preparation thereof
  • Anthryl derivative and preparation thereof

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Embodiment Construction

[0028] In order to better understand the content of the present invention, the technical solutions of the present invention will be further described through specific examples below, but the examples do not limit the present invention.

[0029] Take the preparation of 13,13-dimethyl-3-(2-naphthalene)-13 indeno(1,2-b)anthracene as an example:

[0030] A step reaction:

[0031] 1. Add catalyst to o-xylene, cool to below 5°C, add bromine dropwise, after dropwise addition, react with light for 20 hours, then wash with 5% sodium hydroxide solution and distilled water successively, after washing, distill to get the product o-Dibromotoluene, the yield of this reaction is about 85%.

[0032] 2. Add dichloromethane and concentrated hydrochloric acid to o-dibromotoluene, add methylhydrazine while stirring, and quickly heat up to 50°C after the reactant is completely dissolved, react for 4 hours, then add sodium nitrite dropwise, and distill to obtain Dry 1-methylisoindole.

[0033] 3...

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Abstract

The invention belongs to the technical field of organic electroluminescence and relates to a blue organic electroluminescent material and a method for preparing the same, in particular to anthryl derivatives and a method for preparing the same. In the method for synthesizing the anthryl derivatives, o-dimethyl benzene and naphthalene boric acid are used as initial materials and are subjected to bromination reaction, Suzuki reaction, dehydration, cyclization and the like to further synthesize a final product. A prepared compound can be used as a blue luminescent material used in an electroluminescent device; as a molecular structure of the compound contains an anthracene ring with stable performance, the problem of the stability of the luminescent material is well solved; as the molecule contains no nitrogen atom, no sulphur atom and no other heteroatom, the service life of the luminescent material is prolonged; therefore, the problem that the blue luminescent material in tricolor luminescence has short service life is readily solved.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescence, and relates to a blue organic electroluminescent material and a preparation method thereof, in particular to an anthracenyl derivative and a preparation method thereof. Background technique [0002] With the rapid development of information technology, people put forward higher and higher requirements for information display technology. Since Tang C W and Vanslyke S A of Kodak Company in the United States produced the first organic electroluminescent device with excellent performance in 1987, organic electroluminescent displays have attracted great interest due to their many advantages. [0003] Organic electroluminescence (OEL) refers to the phenomenon that organic materials emit light when excited by electric current and electric field under the action of electric field. Organic light-emitting diodes (OLEDs) are a next-generation display technology that utilizes this phenom...

Claims

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Application Information

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IPC IPC(8): C07C13/62C07C1/24H01L51/54C09K11/06
Inventor 孙英杰刘宝军李红娟
Owner HEBEI DELONGTAI CHEM
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