Patent ID: 8192847

Claim:
An organic electroluminescent device comprising a substrate, and provided thereon, an anode and a cathode, at least one organic layer being provided between the anode and the cathode, wherein the at least one organic layer contains a compound represented by formula (1), wherein R 1 represents a hydrogen atom, an alkyl group, an cycloalkyl group, an alkenyl group, an alkynyl group, an aromatic hydrocarbon group, an alkoxy group, a cycloalkoxy group, an aryloxy group, an alkylthio group, a cycloalkylthio group, an arylthio group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, an acyl group, an acyloxy group, an amido group, a carbamoyl group, a ureido group, a sulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, an amino group, a cyano group, an nitro group, a hydroxyl group, a mercapto group or a silyl group; Ar represents an aromatic hydrocarbon group or an aromatic heterocyclic group; and n 1 represents an integer of from 0 to 4.