Method for producing aromatic compound and aromatic compound

Abstract

A process for producing an aromatic compound which can effectively decrease the contents of halogen elements in the aromatic compound and an aromatic compound which is produced in accordance with the process and useful as the material for obtaining an organic electroluminescence device having a long life are provided. The process for producing an aromatic compound comprises bringing an aromatic compound which is produced via an intermediate compound having halogen elements and has contents of halogen elements of 10 to 1,000 ppm by mass into reaction with a dehalogenating agent to decrease the contents of halogen elements to 10 ppm by mass or smaller, and an aromatic compound which is produced in accordance with the process.

1 - 11 . (canceled) 
   
   
       12 . An organic electroluminescent device, comprising:
 an organic thin film layer;   a cathode; and   an anode;   wherein:   the organic thin film layer is interposed between the cathode and the anode;   the organic thin film layer comprises at least one light emitting layer;   the at least one light emitting layer comprises an aromatic compound obtained by reacting an aromatic precursor with a dehalogenating agent to reduce a content of halogen elements in the aromatic compound to an amount of 10 ppm by mass or less.   
   
   
       13 . The organic electroluminescent device according to  claim 12 , wherein the aromatic compound is produced via an intermediate compound having halogen elements. 
   
   
       14 . The organic electroluminescent device according to  claim 12 , wherein the aromatic compound comprises a condensed aromatic ring having 14 to 20 ring carbon atoms. 
   
   
       15 . The organic electroluminescent device according to  claim 12 , wherein the aromatic compound comprises 1 to 12 nitrogen atoms. 
   
   
       16 . The organic electroluminescent device according to  claim 12 , wherein the halogen element comprises at least one element selected from the group consisting of bromine and iodine. 
   
   
       17 . The organic electroluminescent device according to any one of  claims 12  to  16 , wherein the dehalogenating agent comprises at least one agent selected from the group consisting of Grignard reagents, organolithium compounds and boronic acid derivatives. 
   
   
       18 . The organic electroluminescent device according to  claim 17 , wherein the Grignard reagent comprises at least one reagent selected from the group consisting of phenylmagnesium bromide, phenylmagnesium iodide, ethylmagnesium bromide and ethylmagnesium iodide. 
   
   
       19 . The organic electroluminescent device according to  claim 17 , wherein the organolithium compound comprises at least one compound selected from the group consisting of n-butyllithium and phenyllithium. 
   
   
       20 . The organic electroluminescent device according to  claim 17 , wherein the boronic acid derivative comprises phenylboronic acid.