公开(公告)号：DE3717033A1

公开(公告)日：1988-12-08

申请号：DE3717033

申请日：1987-05-21

Applicant: BASF AG

Inventor： ALDAG REINHARD DR ,  NEUMANN PETER DR ,  BOETTCHER ANDREAS DR ,  BLUEMEL THOMAS DR ,  SEITZ FRIEDRICH DR

IPC: G03C1/00 ,  G03F7/004 ,  G03F7/031 ,  G03C1/72 ,  G03C1/68 ,  G03F7/10

公开(公告)号：DE3620430A1

公开(公告)日：1987-12-23

申请号：DE3620430

申请日：1986-06-18

Applicant: BASF AG

Inventor： KEMPE UWE DR ,  DOCKNER TONI DR ,  KARN HELMUT ,  BLUEMEL THOMAS DR ,  LEYRER REINHOLD J DR ,  LOERZER THOMAS DR

IPC: C07B61/00 ,  C07D233/54 ,  C07D233/61 ,  C07D233/64 ,  C07D233/58 ,  C07D235/20

Abstract: Hexaarylbisimidazoles I I where Ar1, Ar2 and Ar3 are each aryl, of which Ar2 and Ar3 can be linked to form an anellated ring system, are prepared by oxidizing the corresponding triarylimidazoles II II in an aqueous/organic two-phase system in the presence of active amounts of an onium salt III.