PREPARATION OF CATIONIC AZO DYES DERIVED FROM 2-AMINO-6-(2-CHLOROETHOXY)BENZOTHIAZOLE AND 2-AMINO-4-(2-HYDROXYETHOXY)BENZOTHIAZOLE

Authors
DELIGEORGIEV TG SIMOV D
Citation
Tg. Deligeorgiev et D. Simov, PREPARATION OF CATIONIC AZO DYES DERIVED FROM 2-AMINO-6-(2-CHLOROETHOXY)BENZOTHIAZOLE AND 2-AMINO-4-(2-HYDROXYETHOXY)BENZOTHIAZOLE, Dyes and pigments, 38(1-3), 1998, pp. 115-125
Citations number
11
Categorie Soggetti
Engineering, Chemical","Chemistry Applied","Materiales Science, Textiles
Journal title
Dyes and pigments → ACNP
ISSN journal
01437208
Volume
38
Issue
1-3
Year of publication
1998
Pages
115 - 125
Database
ISI
SICI code
0143-7208(1998)38:1-3<115:POCADD>2.0.ZU;2-Z
Abstract
Azo dyes derived from 2-amino-6-(2-chloroethoxy) benzothiazole and 2-a mino 4-(2-hydroxyethoxy)-benzothiazole were prepared by diazotization and coupling with different N,N-disubstituted anilines. The dyes were then quaternized with various alkylating agents, re. dimethyl sulphate , benzene-sulfonic acid methyl ester, acrylamides and epoxy compounds. Some parameters of the quaternization reaction are critically evaluat ed. The new benzothiazolic cationic dyes absorb in the region of 606-6 36 nm and have molar absorptivity of 40 000-80 000 Lmol(-1) cm(-1). (C ) 1998 Elsevier Science Ltd. All rights reserved.