公开(公告)号：DE19502940A1

公开(公告)日：1996-08-01

申请号：DE19502940

申请日：1995-01-31

Applicant: BASF AG

Inventor： MERGER ROLAND DR ,  REINHARDT ROBERT DR ,  REICHELT HELMUT DR ,  GENZ MANFRED DR

IPC: C07C209/32 ,  C07C211/50 ,  C07B43/04 ,  C07C209/36

Abstract: In the prepn. of 4,4'-diaminostilbene (I) by reacting 2,2'-bis(4-nitro-phenyl)ethane (II) with N2H4 in the presence of a base, (a) a mixt. of one reactant, base and opt. inert diluent is heated to 70-160 deg C; (b) the other reactant is added at this temp.; and (c) reaction is continued at 100-200 deg C.

公开(公告)号：DE4410660A1

公开(公告)日：1995-09-28

申请号：DE4410660

申请日：1994-03-26

Applicant: BASF AG

Inventor： REINHARDT ROBERT DR ,  REICHELT HELMUT DR ,  MERGER ROLAND DR

IPC: C07C213/02 ,  C07C215/76 ,  C07D295/096 ,  C07C215/74 ,  C07C215/86

Abstract: Prepn of carbocyclic m-amino-hydroxy-aromatics (I) comprises reacting carbocyclic o- or m-halo-hydroxy-aromatics or their metal salts with prim or sec amines in the presence of a base and opt a diluent.