Bis (aminostyryl)naphthalin-Verbindungen, ihre Zwischenprodukte und Verfahren zu ihrer Herstellung

摘要

A bis(aminostyryl)naphthalene compound represented by the general formula ÄIÜ or the like below. (where R<2> and R<3> each denotes an unsubstituted aryl group; R<1> and R<4> each denotes an aryl group having a specific substituent such as methoxy group; and R<5> and R<6> each denotes a cyano group or the like.) A process for producing a bis(aminostyryl)naphthalene compound represented by the general formula ÄIÜ 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.