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Arylamine compound and organic electroluminescence device

  • US 6,515,182 B2
  • Filed: 09/05/2001
  • Issued: 02/04/2003
  • Est. Priority Date: 09/05/2000
  • Status: Expired due to Term
First Claim
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1. A novel arylamine compound represented by the following general formula (1):

  • embedded imagewherein R1 and R2 each independently represent a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkoxyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 40 carbon atoms, a substituted or unsubstituted arylalkyl group having 7 to 40 carbon atoms or a substituted or unsubstituted aryloxyl group having 6 to 40 carbon atom; and

    Ar1 to Ar4 each independently represent a substituted or unsubstituted aryl group having 6 to 40 carbon atoms or a substituted or unsubstituted heterocyclic group having 5 to 40 carbon atoms and may represent a same group or different groups, with provisos that at least two of Ar1 to Ar4 each represent a substituted or unsubstituted m-biphenyl group or biphenyl group substituted with aryl groups and others of Ar1 to Ar4 each represent a substituted or unsubstituted biphenyl group and that, when at least two of Ar1 to Ar4 each represent biphenyl group substituted with two aryl groups, others of Ar1 to Ar4 each represent a substituted or unsubstituted aryl group.

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