Selective Synthesis of a Rotaxane Consisting of Size-Complementary Components and Its Stepwise Deslippage
journal contributionposted on 04.05.2012, 00:00 authored by Yosuke Akae, Hisashi Okamura, Yasuhito Koyama, Takayuki Arai, Toshikazu Takata
An α-cyclodextrin-based size-complementary rotaxane with an alkylene axle was selectively synthesized in one pot via an end-capping reaction with 2-bromophenyl isocyanate in water. Thermal degradation of the rotaxane product yielded not only the original components but also the rotaxane. Thermodynamic studies suggested a stepwise deslippage process.