Fig. 38. Gagne and co-workers diastereoselective assembly of catenane (R,S)-(R)3-(R)-82. (a) Building blocks (R)-80 and (R,S)-81. (b) Schematic representation of (R,S)2-(R)6-(R)-82 (R and R, S refer to stereochemistry of repeating covalent fragments derived from (R)-80 and (R,S)-81 respectively; (R) refers to the topological stereogenic unit). (c) Solid state structure of catenane (R,S)2-(R)6-(R)-82 demonstrating the formation of a single diastereomer. Ar = naphthyl. Highest priority atoms in each component are highlighted in black.
