Fujita et al., 1994

1. Fujita et al., 1994

2. Fujita et al. Nature, 1994

5. molecular "magic rings" Fujita et al.

6. The stoichiometry will induce the right selection of the fragments so as to afford a catenane quantitatively Fujita et al.

8. The complexes contain two identical ligands but each ligand is asymmetric: the ring is oriented

9. a catenane with two oriented rings Is it a chiral compound?

11. a catenane with two 36-membered rings

12. quantitative formation of [2]catenanes using copper(I)and palladium(II) as templating and assembling centers: the entwining route and the threading approach Christiane Dietrich-Buchecker, Benoît Colasson, Makoto Fujita, Akiko Hori, Neri Geum, Shigeru Sakamoto, Kentaro Yamaguchi

13. the entwining approach

14. synthesis of the unsubstituted ligand via Stille cross-coupling reaction

15. use of Suzuki-Miyaura cross-coupling reactions

16. synthesis of a [2]catenane by entwining (CuI) and clipping (PdII) 2 both reaction are virtually quantitative thermodynamic control