1. von Bayer, A. Ber.1872, 5, 25–26. Although he did not know the real structure of this compound by that time, which was finally elucidated by Erdtman et al. in 1968 (Erdtman, H.; Högberg, S.; Abrahamsson, S.; Nilsson, B. Tetrahedron Lett.1968, 9, 1679–1682).
2. Supramolekulare Chemie;Vögtle,1992
3. Supramolecular Chemistry;Lehn,1995
4. Supramolecular Chemistry;Steed,2000
5. Some reviews and books: (a) Gutsche, C. D. Calixarenes; Royal Society of Chemistry: Cambridge, 1989; (b) Vicens, J.; Böhmer, V., Eds.; Calixarenes. A Versatile Class of Macrocyclic Compounds; Kluwer: Dodrecht, 1991; (c) Cram, D. J. Nature1992, 356, 29–36; (d) Cram, D. J.; Cram, J. M. Container Molecules and Their Guests; Royal Society of Chemistry: Cambridge, 1994; (e) Sherman, J. C. Tetrahedron1995, 51, 3395–3422; (f) Böhmer, V. Angew. Chem.1995, 107, 785–818; (g) Timmerman, P.; Verboom, W.; Reinhoudt, D. N. Tetrahedron1996, 52, 2663–2704; (h) Walliman, P.; Marti, T.; Fürer, A.; Diederich, F. Chem. Rev.1997, 97, 1567–1608; (i) Chapman, R. G.; Sherman, J. C. Tetrahedron1997, 53, 15911–15945; (j) Higler, I.; Timmerman, P.; Verboom, W.; Reinhoudt, D. N. Eur. J. Org. Chem.1998, 2689–2702; (k) Rudkevich, D. M.; Rebek, J., Jr. Eur. J. Org. Chem.1999, 1991–2005; (l) Jasat, A.; Sherman, J. C. Chem. Rev.1999, 99, 931–967; (m) Warmuth, R.; Yoon, J. Acc. Chem. Res.2001, 34, 95–105.