Bis(aminostyryl) anthracene compound, synthesis intermediate...

Details Bis(aminostyryl) anthracene compound, synthesis intermediate... Bis(aminostyryl) anthracene compound, synthesis intermediate...

2007-03-27

2007-03-27

Davis, Brian (Department: 1621)

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

Organic compounds

Amino nitrogen containing

Reexamination Certificate

active

11153878

ABSTRACT:
A bis(aminostyryl)anthracene compound represented by the general formula [I] or the like below.(where R2and R3each denotes an unsubstituted aryl group; R1and R4each denotes an aryl group having a specific substituent such as methoxy group; and R5and R6each denotes a cyano group or the like.)A process for producing a bis(aminostyryl)anthracene compound represented by the general formula [I] by condensation of, for example, 4-(N,N-diarylamino)benzaldehyde with diphosphonic ester or diphosphonium.The bis(aminostyryl)anthracene compound emits intense yellow or red light. The process permits efficient production of the bis(aminostyryl)anthracene compound. The bis(aminostyryl)anthracene compound emits intense yellow or red light. The process permits efficient production of the bis(aminostyryl)anthracene compound.

REFERENCES:
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Patent Abstracts of Japan, vol. 2000, No. 4, Aug. 31, 2000 and JP 2000 012228 A (Sony Corp.), Jan. 14, 2000.
Richard D. Broene, et al., “The Synthesis of Circumanthracene”, Tetrahedron Letters, vol. 32, No. 39, Sep. 23, 1991, p. 5227-5230, XP002169040, Oxford GB.

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