37619-78-6Relevant articles and documents
Preparation method of 9-anthraldehyde-1, 1-diphenylhydrazone
-
, (2017/02/24)
The invention relates to a preparation method of 9-anthraldehyde-1, 1-diphenylhydrazone. The preparation method comprises that anthracene, phosphorous oxychloride and N, N-dimethyl formamide are added into a reaction container, the materials undergo a reaction at a temperature of 60-120 DEG C for 6-48h to produce 9-anthraldehyde, N-nitrosodiphenylamine, zinc, acetate acid gracial and an alcohol solvent are added into the reaction container, the mixture undergoes a reaction at a temperature of 0-40 DEG C for 1-9h to produce 1, 1-diphenylhydrazine, 9-anthraldehyde and 1, 1-diphenylhydrazine are added into the reaction container, the mixture undergoes a reaction, the reaction product is cooled and precipitated, and the crystals are filtered and then are recrystallized in benzene so that 9-anthraldehyde-1, 1-diphenylhydrazone is obtained. Through simple recrystallization of the desired compound, a product with purity greater than 99.5% is obtained. The preparation method has the advantages of low raw material cost, mild reaction conditions and high desired product yield. The preparation method provides possibility for use of the hydrazone compound as a semi-conducting material in research on organic electroluminescent devices and organic light conductors.