Method for producing azo dye compounds

There is disclosed a method for producing azo dye compounds, which comprises reacting a compound represented by formula (I) or (II) with a coupling component, in the presence of an oxidizing agent. ein Z1 and Z2 each represent an acyl group, a carbamoyl group, an alkoxycarbonyl group, or an aryloxyc...

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Bibliographic Details
Main Authors NAKAMURA; KOKI, TAKEUCHI; KIYOSHI
Format Patent
LanguageEnglish
Published 30.03.1999
Edition6
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
AUXILIARY PROCESSES IN PHOTOGRAPHY
CHEMISTRY
CINEMATOGRAPHY
DYES
ELECTROGRAPHY
HETEROCYCLIC COMPOUNDS
HOLOGRAPHY
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC CHEMISTRY
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
POLISHES
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Summary:There is disclosed a method for producing azo dye compounds, which comprises reacting a compound represented by formula (I) or (II) with a coupling component, in the presence of an oxidizing agent. ein Z1 and Z2 each represent an acyl group, a carbamoyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group; X1, X2, X3, X4, and X5, each represent a hydrogen atom or a substituent, provided that the sum of the Hammett substituent constant sigma p values of X1, X3, and X5 and the Hammett substituent constant sigma m values of X2 and X4 is 0.80 or more but 3.80 or below; and R3 represents a heterocyclic group. According to the above method, azo dye compounds can be produced in a high yield by the use of hydrazines or azo compounds, both of which are safe raw materials, rather than a diazonium salt compound that involves a risk of explosion.
Bibliography:Application Number: US19960756913