Patent · US Expired

Isoindoline dyes, their preparation and use

US4373102A · kind A · utility

6Cited by
3References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 7, 1980
Grant dateFeb 8, 1983
Priority date
Expiry dateMar 7, 2000

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC09B57/04
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Novel dyes of the formula ##STR1## where A is cyano, carbo-C.sub.1 -C.sub.4 -alkoxy, carbamyl, N-C.sub.1 -C.sub.4 -alkylcarbamyl, N-phenylcarbamyl, acetyl, benzoyl, 4-nitrophenyl or 4-cyanophenyl, PA0 X is hydrogen, chlorine, C.sub.1 -C.sub.4 -alkyl or C.sub.1 -C.sub.4 -alkoxy, and if n is 2 the substituents may be identical or different, PA0 n is 1 or 2, PA0 R.sup.1 is hydrogen, methyl, ethyl or 2-hydroxyethyl and PA0 R.sup.2 is phenyl or cyclohexyl, or PA0 R.sup.1 is hydrogen and PA0 R.sup.2 is C.sub.1 -C.sub.4 -alkyl, or PA0 R.sup.1 and R.sup.2 are C.sub.1 -C.sub.6 -alkyl, allyl or phenyl-C.sub.1 -C.sub.4 -alkyl or PA0 the group ##STR2## is a saturated heterocyclic five-membered or six-membered ring which may additionally contain an oxygen or a further nitrogen as ring members, PA0 Y is hydrogen, hydroxyl, methyl or ethyl; ##STR3## where R.sup.3 is linear or branched C.sub.1 -C.sub.12 -alkyl, or is phenyl; ##STR4## where R.sup.4 is hydrogen or C.sub.1 -C.sub.4 -alkyl and R.sup.5 is hydrogen, linear or branched C.sub.1 -C.sub.12 -alkyl or trifluoromethyl; chloromethyl; C.sub.1 -C.sub.4 -alkoxymethyl, phenoxymethyl, benzyl, phenylethyl, C.sub.3 -C.sub.7 -cycloalkyl, phenyl, H.sub.…

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.