Aromatic amine derivative and organic electroluminescent device using same

Abstract

Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized thereby improving the production yield of the organic electroluminescence device. This organic electroluminescence device has a long life.

1 - 20 . (canceled) 
     
     
         21 . A process for producing an amine compound comprising reacting a halogenated aryl compound with an amine intermediate represented by the following general formula (1): 
       
         
           
           
               
               
           
         
         wherein 
         Ar 1  represents a substituted or unsubstituted aryl group having 6 to 50 ring atoms, 
         R 1  and R 2  each independently represent an alkyl group having 1 to 50 carbon atoms, and 
         the substituents of R 1  and R 2  may bond to each other to form a cyclic structure. 
       
     
     
         22 . The process according to  claim 21 , wherein said reacting is carried out in the presence of a base and a palladium compound. 
     
     
         23 . The process according to  claim 21 , wherein the halogenated aryl compound comprises a nitrogen atom. 
     
     
         24 . The process according to  claim 21 , wherein the halogenated aryl compound is selected from the group consisting of the following compounds: 
       
         
           
           
               
               
           
         
       
     
     
         25 . The process according to  claim 21 , wherein the amine intermediate is selected from the group consisting of the following compounds: 
       
         
           
           
               
               
           
         
       
     
     
         26 . The process according to  claim 21 , wherein the amine intermediate is represented by the following general formula (2): 
       
         
           
           
               
               
           
         
         wherein 
         R 1  to R 4  each independently represent an alkyl group having 1 to 50 carbon atoms, 
         provided that R 1  and R 2  may be bonded to each other to form a cyclic structure, and 
         R 3  and R 4  may be bonded to each other to form a cyclic structure. 
       
     
     
         27 . The process according to  claim 21 , wherein the amine intermediate is represented by the following general formula (3): 
       
         
           
           
               
               
           
         
         wherein 
         R 1  and R 2  each independently represent an alkyl group having 1 to 50 carbon atoms, 
         provided that R 1  and R 2  may be bonded to each other to form a cyclic structure. 
       
     
     
         28 . The process according to  claim 27 , wherein said reacting is carried out in the presence of a base and a palladium compound. 
     
     
         29 . The process according to  claim 27 , wherein the halogenated aryl compound comprises a nitrogen atom. 
     
     
         30 . The process according to  claim 27 , wherein the halogenated aryl compound is selected from the group consisting of the following compounds: 
       
         
           
           
               
               
           
         
       
     
     
         31 . The process according to  claim 27 , wherein the amine intermediate is selected from the group consisting of the following compounds: 
       
         
           
           
               
               
           
         
       
     
     
         32 . An organic electroluminescence device comprising an amine compound produced by the process according to  claim 21 . 
     
     
         33 . An organic electroluminescence device comprising an amine compound produced by the process according to  claim 27 . 
     
     
         34 . An amine intermediate represented by one or more of the following compounds: