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.
INOUE TETSUJI
AOTANI JUNJI
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