作者:Yoko Abe、Hisashi Okamura、Kazuko Nakazono、Yasuhito Koyama、Satoshi Uchida、Toshikazu Takata
DOI:10.1021/ol301771w
日期:2012.8.17
A thermoresponsive rotaxane shuttling system was developed with a trichloroacetate counteranion of an ammonium/crown ether-type rotaxane. Chemoselective thermal decomposition of the ammonium trichloroacetate moiety on the rotaxane yielded the corresponding nonionic rotaxane accompanied by a positional change of the crown ether on the axle. The rotaxane skeleton facilitated effective dissociation of the acid, markedly lowering the thermal decomposition temperature.