Synthesis of 2Rotaxanes by the Catalytic Reactions of a Macrocyclic Copper Complex

We synthesized 2rotaxanes by the reactions catalyzed by a macrocyclic Cu(I)-phenanthroline complex. The catalytic site was located inside the ring component so that the rotaxane could be selectively formed. A C-S bond-forming reaction and oxidative dimerization of alkyne was utilized for the efficient synthesis of a new series of 2rotaxanes. reaction: see text