Bis (aminostyryl) naphthalene compound, synthesis...

Details Bis (aminostyryl) naphthalene compound, synthesis... Bis (aminostyryl) naphthalene compound, synthesis...

2006-08-08

2006-08-08

Richter, Johann (Department: 1621)

Stock material or miscellaneous articles

Composite

Of metal

C425SDIG121, C313S504000, C252S301160

Reexamination Certificate

active

07087310

ABSTRACT:
A bis(aminostyryl)naphthalene 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)naphthalene 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)naphthalene compound emits intense yellow or red light. The process permits efficient production of the bis(aminostyryl)naphthalene compound.

REFERENCES:
patent: 5389444 (1995-02-01), Hosokawa et al.

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