公开(公告)号：CA2026904A1

公开(公告)日：1991-04-21

申请号：CA2026904

申请日：1990-10-04

Applicant: PFISTER JUERGEN ,  SCHIESSL MICHAEL ,  NACHTRAB RAINER

Inventor： PFISTER JUERGEN ,  SCHIESSL MICHAEL ,  NACHTRAB RAINER

IPC: B01J27/08 ,  B01J19/20 ,  C07B61/00 ,  C07C46/00 ,  C07C46/02 ,  C07C50/34 ,  C07C50/38 ,  C07C50/26

Abstract: O.Z. 0050/41190 1-Hydroxyanthraquinones are prepared by reacting phthalic anhydride or derivatives thereof with phenol derivatives in the presence of a Lewis acid as catalyst and in the presence or absence of a diluent in a self-cleaning apparatus having a mixing effect.