Title:
AZO COLORANT
Document Type and Number:
Japanese Patent JPH01198666
Kind Code:
A
Abstract:
Heterocyclic compounds of the formula wherein R1 denotes a substituent, R2 denotes an optionally substituted carbocyclic-aromatic or heterocyclic-aromatic radical and n denotes 0, 1, 2, 3 or 4, and azo colorants of the formula wherein D denotes the radical of an aromatic or hetero-aromatic amine which is free from sulphonic acid groups, p denotes an integer, preferably 1 or 2, and R1, R2 and n have the meaning mentioned in claim 1, processes for the preparation of the heterocyclic compounds and of the azo colorants, and the use of the azo colorants as pigments.
Inventors:
MAINHARUTO RORUFU
RIYUTOGAA NIIFU
BARUTAA MIYUURAA
RIYUTOGAA NIIFU
BARUTAA MIYUURAA
Application Number:
JP32075388A
Publication Date:
August 10, 1989
Filing Date:
December 21, 1988
Export Citation:
Assignee:
BAYER AG
International Classes:
C07D239/88; C07D239/90; C07D239/91; C07D403/04; C09B29/01; C09B29/32; C09B29/52; C09B35/03; (IPC1-7): C09B29/52; C09B35/03
Attorney, Agent or Firm:
Heikichi Odashima