Synthesis of Conjugated Spiropyran Dyes <i>via</i> Palladium-Catalyzed Coupling Reaction
作者:Young Jin Cho、Kee Yoon Rho、Sam Rok Keum、Sung Hoon Kim、Cheol Min Yoon
DOI:10.1080/00397919908086198
日期:1999.6
Spiropyrans (5a-h) conjugated at 6 position have been conveniently and efficiently prepared by palladium-catalyzed coupling of 6-iodo-spiropyran (4a, 4b) with olefins or alkynes in moderate to high yield. This method might be a particularly very important way as one of structural modifications for further study of spiropyran containing liquid crystals, which might be a potential optical switch (LCOS) developement based on the principle of photoresolution.