N-denitration of N,2,6-trinitroanilines with phase transfer catalysts
申请人:AMERICAN CYANAMID COMPANY
公开号:EP0024503A1
公开(公告)日:1981-03-11
A method for the N-denitration of secondary N,2,6- trinitroanilines with phase transfer catalysts selected from quaternary ammonium salts.
一种利用选自季铵盐的相转移催化剂对仲 N,2,6-三硝基苯胺进行 N-脱硝化的方法。
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.