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A versatile scaffold for facile synthesis of fluorescent cyano-substituted stilbenes
Authors:Shotaro Hayashi  Minami Sakamoto  Fumitaka Ishiwari  Takanori Fukushima  Shin-ichi Yamamoto  Toshio Koizumi
Affiliation:1. Department of Applied Chemistry, National Defense Academy, 1-10-20, Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan;2. Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
Abstract:Here we report the facile derivatization of a cyano-substituted stilbene into higher π-extended analogues. The cyano-substituted stilbene, which serves as a synthetic scaffold, has a bromo group and a formyl group on its 4- and 4′-position of the phenylene rings and thus readily undergoes selective transformation into other functional groups using various simple organic reactions. The resultant π-conjugated molecules that contain a cyano-substituted stilbene skeleton exhibit fluorescence in solution and in the solid state.
Keywords:π-Conjugated molecule  Fluorescence  Scaffold
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