Disazo compounds containing cycloalkyl ester or cycloalkylamide groups

US5298609A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventor

• Stefan Hari · Allschwil, CH

Key dates

• Filing date: Jul 14, 1993
• Grant date: Mar 29, 1994
• Expiry date: Jul 14, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09B33/153
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compounds of formula I ##STR1## wherein R is a radical of formula --OR.sub.3 or --NHR.sub.3, A is a radical of formula II or III ##STR2## and B is a radical of formula ##STR3## wherein n is 1 or 2, PA0 R.sub.1 is --H or --Cl, PA0 R.sub.2 is --H, halogen, --NO.sub.2, --CN, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, --CF.sub.3, C.sub.2 -C.sub.5 alkoxycarbonyl, --CONH--phenyl, --NHCO-phenyl or phenoxy, each unsubstituted or substituted in the phenyl nucleus by one or two chlorine atoms or by one or two methyl, methoxy or ethoxy groups, PA0 R.sub.3 is C.sub.5 -C.sub.12 cycloalkyl, which is unsubstituted or substituted by 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.5 -C.sub.6 cycloalkyl groups, PA0 R.sub.4 and R.sub.5 are each independently of the other --H, halogen, --NO.sub.2, --CN, --CF.sub.3, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, PA0 R.sub.6 is --H, --Cl, --Br, --CH.sub.3 or --OCH.sub.3, and PA0 X is --H, --Br, --OCH.sub.3, --CN or --NO.sub.2, are suitable for use as pigments, especially for colouring polyolefins.