Device utilizing bathophenanthroline compound and process for preparing same

Abstract

A novel bathophenanthroline compound of the general formula [I] or [II] is provided wherein R 1 and R 2 may be the same or different and independently represent a linear, branched or cyclic, saturated or unsaturated hydrocarbon group, or a substituted or unsubstituted, saturated or unsaturated hydrocarbon group provided that at least one of R 1 and R 2 has at least two carbon atoms, and wherein Ar 1 and Ar 2 may be the same or different and independently represent a substituted or unsubstituted aryl group. A process for preparing the compound is also provided wherein bathophenanthroline and an organolithium compound are subjected to nucleophilic substitution reaction to obtain the compound of the above formula [I] or [II].

1 - 10 . (canceled)  
     
     
         11 . An organic EL device comprising: 
 an organic layer having a luminescent region provided between an anode and a cathode, wherein the organic layer comprises a bathophenanthroline compound of formula:                          wherein Ar 1  and Ar 2  may be the same or different and independently represent an aryl group but do not form an interlocking macrocyclic compound.    
     
     
         12 . An organic EL device according to  claim 11  wherein Ar 1  and Ar 2  are selected from the group consisting of a 1-naphthyl group, a 2-anthryl group, a 9-anthryl group, a 2-fluorenyl group, a 4-quinolyl group, a pyridyl group, a 3-pyridynyl group, a 2-pyridynyl group, a 3-furyl group, a 2-furyl group, a 3-thienyl group, a 2-oxazolyl group, a 2-thiazolyl group, a 2-benzoxazoryl group, a 2-benzothiazoryl group, a 2-benzoimidazoryl group, a 4-methylphenyl group a 3-methylphenyl group, a 2-methylphenyl group, a n,n-dimethylphenyl group, a n,n,n-trimethylphenyl group, a n-ethylphenyl group, a n,n-diethylphenyl group, a n,n,n-triethylphenyl group, a 4-n-propylphenyl group, a n-isopropylphenyl group, a 4-n-butylphenyl group, a 4-isobutylphenyl group, a 4-sec-butylphenyl group, a n-tert-butylphenyl group.