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Title:
COMPOUND FOR ORGANIC EL ELEMENT AND ORGANIC EL ELEMENT
Document Type and Number:
Japanese Patent JP2000026337
Kind Code:
A
Abstract:

To obtain the subject novel compound, capable of expressing an emission with sufficient brightness, especially the emission at a long wave and excellent in durability of continuing good emitting performance for a long time.

This compound for organic EL elements is a compound having a basic skeleton expressed by the formula (R1 to R4 are each an aryl or an alkenyl; R5 to R8 are each H), e.g. 5,12-bis(2-naphtyl)-6,11-diphenyl-naphthacene. E.g. boron tribromide is added to a mixture solution of naphthoquinone with 1,3-diphenylisobenzofuran in methylene chloride to obtain 6,11-diphenyl-5,11- naphthacenequinone. Then, a toluene/ether solution of a lithiation reagent prepared from N-butyllithium hexane solution and 2-bromonaphthalene is dropped in a toluene solution of the naphthacenequinone. The compound of the formula is obtained by extracting the resulting reaction solution with toluene, washing the extract toluene solution with water, drying with magnesium sulfate, distilling the solvent off and obtaining the corresponding a diol derivative.


Inventors:
FUJITA TETSUJI
INOUE TETSUJI
AOTANI JUNJI
Application Number:
JP12497199A
Publication Date:
January 25, 2000
Filing Date:
April 30, 1999
Export Citation:
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Assignee:
TDK CORP
International Classes:
C07D239/72; C07C15/62; C07C43/257; C07C211/50; C07D215/12; C07D219/02; C07D311/16; C07D311/18; C09K11/06; H01L51/50; H05B33/12; H05B33/14; (IPC1-7): C07C15/62; C07C43/257; C07C211/50; C07D215/12; C07D219/02; C07D239/72; C07D311/16; C07D311/18; C09K11/06; H05B33/14
Attorney, Agent or Firm:
Youichi Ishii