Kondensationen mit aliphatischen und zykloaliphatischen Aminen, Iminen und Diaminen in der Anthrachinonreihe

Abstract

Starting from the known cyclisation reaction of 1-(o-aminoanilido)-anthraquinone leading to anthraquinone-1,2-dihydrophenacine it was shown that this kind of reaction can similarly be realised with aliphatic and cycloaliphatic 1,2-diamines; as a by-product of the latter type reaction, 1,10-anthraquinone- 2',3'-dihydro-2', 3'-tetramethylenediazepine was isolated.
The reaction of 1-chloro-anthraquinone with 1,2-iminocyclohexane leads to a 2'-hydroxy- and to a 2'-chloro-cyclohexylamino substituted anthraquinone and to a ringclosed product of the carbazol type.