Synthesis for quinacridone compounds

Details Synthesis for quinacridone compounds Synthesis for quinacridone compounds

2006-04-11

2006-04-11

Desai, Rita (Department: 1625)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C546S056000

Reexamination Certificate

active

07026481

ABSTRACT:
Disclosed is a process for forming a N,N′-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N-arylamino) benzene with an iodoaryl compound to form the corresponding 2,5-bis(N-diarylamino) compound. The process is versatile and provides high yields and purity for the synthesis of N,N′-diarylquinacridone compounds.

REFERENCES:
patent: 4544746 (1985-10-01), Holtje
patent: 6241814 (2001-06-01), Urban et al.
patent: 6376107 (2002-04-01), Heuer et al.
Morrison & Boyd, Oragnic Chemistry, 3rded. 1974, pp 735, 823 827.
Shi et al, Macromolecules vol. 34 No. 19 pp 6571-6576 (2001) “Conjugated Polymers Contaqinong Arylamine Pendants for Light-Emitting Diodes”.

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