Patent Number: 7,087,310

Title: Bis (aminostyryl) naphthalene compound, synthesis intermediate thereof, and process for production thereof

Abstract: A bis(aminostyryl)naphthalene compound represented by the general formula [I] or the like below. ##STR00001## (where R.sup.2 and R.sup.3 each denotes an unsubstituted aryl group; R.sup.1 and R.sup.4 each denotes an aryl group having a specific substituent such as methoxy group; and R.sup.5 and R.sup.6 each 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.

Inventors: Ichimura; Mari (Kanagawa, JP), Ishibashi; Tadashi (Kanagawa, JP), Tamura; Shinichiro (Kanagawa, JP)

Assignee: Sony Corporation

International Classification: B32B 15/04 (20060101)

Expiration Date: 8/08/02018