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Organic electroluminescence device and phenylenediamine derivative

  • US 6,541,129 B1
  • Filed: 05/09/2000
  • Issued: 04/01/2003
  • Est. Priority Date: 09/09/1998
  • Status: Expired due to Term
First Claim
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1. A phenylenediamine derivative represented by the general formula (III) embedded imagewherein Ar13 to Ar18 represent an aryl group having from 6 to 24 nucleus carbon atoms, which may be substituted with a hydrogen atom, an alkyl or an alkoxy group having from 1 to 6 carbon atom(s), an aryl group having from 6 to 24 nucleus carbon atoms, or a styryl group;

  • X represents a linking group, which is a single bond, arylene having from 6 to 24 nucleus carbon atoms, alkylene having from 1 to 6 carbon atom(s), diphenylmethylene, an ether bond, a thioether bond, a substituted or unsubstituted vinyl bond, or an aromatic heterocyclic ring;

    R7 and R8 represent an alkyl group having from 1 to 6 carbon atom(s), an alkoxy group, or a hydrogen atom, which may be bonded to each other to form a substituted or unsubstituted saturated 5-membered ring or a saturated 6-membered ring, provided that at least one of Ar13 to Ar16 and X represents an aryl group containing a styryl group;

    or one of Ar15, Ar18 and a basic skeleton shown by the following chemical formula (1) contains a condensed aromatic ring, an aromatic heterocyclic ring or a substituted or unsubstituted vinyl group;

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