N-denitration of N,2,6-trinitroanilines with phase transfer catalysts
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0049384A1
公开(公告)日:1982-04-14
A method for the N-denitration of secondary N,2,6- trinitroanilines with phase transfer catalysts.
利用相转移催化剂对仲 N,2,6-三硝基苯胺进行 N-脱硝化的方法。
Triarylamine compound, process for producing the same and electrophotographic photoreceptor using the same
申请人:FUJI XEROX CO., LTD.
公开号:EP0617005A2
公开(公告)日:1994-09-28
A triarylamine compound useful as a charge transport material of an electrophotographic photoreceptor, which represented by formula (I)
wherein Ar1 and Ar2 each represents a phenyl group or a condensed ring group.
A continuous process for the dinitration of aromatic substrates
申请人:FINCHIMICA S.p.A.
公开号:EP0847984A1
公开(公告)日:1998-06-17
A continuous process for the dinitration of alkyl-substituted derivatives of phenol and aniline, using nitric acid substantially free of sulphuric acid, characterised in that the dinitration is conducted in a single step in a tubular reactor in the presence of a catalytically-effective quantity of a catalyst capable of reacting with the nitric acid to form nitrous acid in situ.
A process for the preparation of N,N-bis(3,4-dimethylphenyl)4-biphenylamine which comprises the reaction of N,N-bis(3,4-dimethylphenyl)amine and an iodobiphenyl in the presence of a ligand copper catalyst, and wherein the ligand is selected from the group consisting of monodentate tertiary amines and bidentate tertiary amines, and which reaction is preferably accomplished at a temperature of from about 120°C to about 150°C.