Novel fluorescent 3,6-diaryl-4-phenyl-2-pyridone derivatives were synthesized and their fluorescent properties were investigated. These compounds emit intense brilliant blue fluorescence only in the solid state, not in solution. An electron-donating substituent on the 6-phenyl group caused a red-shift in fluorescence maxima.

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The products emit intense brilliant blue fluorescence in the solid state. -(MINAKATA*, S.; MORIWAKI, S.; INADA, H.; KOMATSU, M.; KAJII, H.; OHMORI, Y.; TSUMURA, M.; NAMURA, K.; Chem. Lett. 36 (2007)