Bis(aminostyryl) naphthalene compound, synthesis intermediate thereof, and process for production thereof
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United States of America Patent
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Sep 14, 2004
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app pub date -
Mar 17, 2003
filing date -
Oct 6, 1999
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Abstract
A bis(aminostyryl)naphthalene compound represented by the general formula [I] or the like below. General Formula [I] ##STR1## (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.
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