Title:
MANUFACTURE OF ALPHA-BENZAMIDE-ALPHA'- HALOGENO-1,1'-DIANTHRAIMIDE
Document Type and Number:
Japanese Patent JPS5777647
Kind Code:
A
Abstract:
Prepn. of (alpha)-benzamido (alpha)'-halogeno dianthrimides -1,1' of formula (I) is claimed. (where R is opt. substd. benzamido gp. at position 4, 5 or 8 position, X is halogen at 4', 5' or 8' position) and comprises reacting an amino-benzamido anthraquinone of formula (II) with a dihalogeno anthraquinone of formula (III). Reaction is at 130-220 deg.C in presence of a Cu catalyst, and an acid scavenger, the mole ratio of (III) to (II) being above 1, pref. at least 1.35. Also claimed are cpds.(I) where R is as above and X is halogen at position 5' or 8'. Pref. R and X are at positions 4 and 5' or 5 and 5' resp. (I) are used for prodn. of vat dyes of the (alpha),(alpha)'- dibenzamido diphthaloyl carbazole type.
Inventors:
MISHIERU DOUBITSUKU
JIYANNKUROODO NIKASU
JIYATSUKU PEIRERU
JIYANNKUROODO NIKASU
JIYATSUKU PEIRERU
Application Number:
JP13768181A
Publication Date:
May 15, 1982
Filing Date:
September 01, 1981
Export Citation:
Assignee:
UGINE KUHLMANN
International Classes:
C07C233/78; C07C67/00; C07C221/00; C07C225/34; C07C231/00; C07C231/12; C09B1/48; C09B5/28; (IPC1-7): C07C97/24