Tetrahedron Letters

Near-infrared solid-state fluorescent naphthooxazine dyes attached with bulky dibutylamino and perfluoroalkenyloxy groups at 6-and 9-positions

SY Park, Y Kubota, K Funabiki, M Shiro, M Matsui

文献索引：Park, So-Yeon; Kubota, Yasuhiro; Funabiki, Kazumasa; Shiro, Motoo; Matsui, Masaki Tetrahedron Letters, 2009 , vol. 50, # 10 p. 1131 - 1135

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被引用次数: 24

摘要

No solid-state fluorescence is observed for 9-(diethylamino) benzo [a] phenoxazin-5-one (Nile Red). However, 9-dibutylamino-6-{perfluoro [4-methyl-3-(1-methylethyl)-2-penten]-2- oxy} benzo [a] phenoxazin-5-one showed fluorescence maximum at 717nm in solid state with fluorescence quantum yield 0.024. X-ray crystallographic analysis suggests that prevention of network π− π interactions by the bulky fluorine-containing and dibutylamino ...