Development Of Crown Ether Based Rotaxanes Having Chirality Specific To Rotaxane Structure

Rotaxanes consisting of achiral axle components and achiral ring components can be chiral due to their unique geometrical architectures. Syntheses of such rotaxanes in optically pure forms are generally difficult. For development of a synthetic method for chiral rotaxanes, we investigated a prerotaxane method based on aminolyses of metacyclophane type of prerotaxanes having planar chirality which are composed of achiral stopper units and crown ether type ring components. In addition to development of synthetic methods, applications of the rotaxanes having chirality specific to rotaxane structure were developed.