One step synthesis for quinacridone compounds
AssigneeEastman Kodak Company
InventorLelia Cosimbescu
Life of this patent
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Abstract
Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a N,N′-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N′ positions and form the corresponding N,N′-diarylquinacridone compound. The process is versatile and provides high yields and purity for the synthesis of N,N′-diarylquinacridone compounds.
Claims38
A process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a N,N′-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N′ positions and form the corresponding N,N′-diarylquinacridone compound.
A process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a N,N′-unsubstituted quinacridone compound of formula 1 with a haloaryl compound of formula 2 in the presence of a metal or metal compound to arylate the N and N′ positions and form the corresponding N,N′-diarylquinacridone compound, wherein formula 1 and formula 2 are as follows:
- wherein R3 and R4 can be hydrogen, alkyl, aryl, alkoxy, fluorine, chlorine, nitro or cyano groups;
- and R6-R14 can be hydrogen, halogen, nitro, cyano, carboxyl, alkyl, alkoxy, aryl, aryloxy, carbonamido, acyl, sulfonyl, acyloxy, a heterocyclic oxy group or a heterocyclic thio group;
- and
- wherein X represents a halogen atom and R15, may be selected from the same substituents described above for R6-R14.
Dependencies are inferred from the claim text.