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C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B29/00—Monoazo dyes prepared by diazotising and coupling
C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
C09B29/3604—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom
C09B29/3647—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms
C09B29/3652—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles
C09B29/366—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing only a nitrogen as heteroatom containing a five-membered ring with two nitrogen atoms as heteroatoms containing a 1,2-diazoles or hydrogenated 1,2-diazoles containing hydroxy-1,2-diazoles, e.g. pyrazolone
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Chemical & Material Sciences
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Organic Chemistry
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Photoreceptors In Electrophotography
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Description
BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.
Claims (1)
Patent-Anspruch :Patent claim:Verfahren zur Darstellung eines gelben Monoazofarbstoffe, darin bestehend, daß
man die Diazoverbindung des 2 ■ 4 - Dinitranilins mit Phenylmethylpyrazolon vereinigt.
A process for the preparation of a yellow monoazo dye, consisting in that
the diazo compound of 2 ■ 4 - dinitraniline is combined with phenylmethylpyrazolone.