Title:
PRODUCTION OF SUBSTITUTED 11AMINOANTHRAQUINONES
Document Type and Number:
Japanese Patent JPS5455557
Kind Code:
A
Abstract:
1. Process for the preparation of substituted 1-aminoanthraquinones by reacting 1-nitroanthraquinone with amines of the general formula HNR1 R2 wherein R1 represents hydrogen or an alkyl radical and R2 represents an alkyl, aryl or aralkyl radical, in aqueous suspension at elevated temperature and optionally in the presence of alkaline neutralising agents, characterised in that 1-nitroanthraquinone with an average particle size of over 100 microns is used and that 1-nitroanthraquinone and the amine are mixed together at the reaction temperature.
Inventors:
KAARUUYURIUSU ROIBUKE
FURIIDORITSUHI DEYUURUHORUTSU
FURIIDORITSUHI DEYUURUHORUTSU
Application Number:
JP11602878A
Publication Date:
May 02, 1979
Filing Date:
September 22, 1978
Export Citation:
Assignee:
BAYER AG
International Classes:
C07C221/00; C07C255/34; C09B1/26; C08K5/18; (IPC1-7): C07C97/24
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