Abstract
Azacalixarenes have side arms (N-substituents) on the nitrogen atoms in their macrocyclic ring systems; thus, a variety of molecular designs are possible by modifying these side arms. This is a special feature of azacalixarene system which is not available in calix[n]arenes. In this paper, we used azacalix[3.1.3.1] and [3.1.1.1]arenes because these compounds have concave cavities. The cavity size of the azacalix[3.1.1.1] structure is small like the calix[4]arenes, but, supramolecular systems can be designed in which two or three azacalix units are connected by covalent or coordination bonds. Previously reported compounds, N-(4-picolyl)-[3.1.3.1] or [3.1.1.1]arenes, can be applied for this purpose. The 4-picolyl group can form covalent bonds with alkylation and form coordination bonds with a variety of transition metal ions. By using these bonds, we extend the cavity size of the azacalixarenes and construct newly designed supramolecular structures. We expected that these molecules would form larger molecular cavities upon side arm modification, and inclusion abilities of these cavities can be extended compared to the azacalixarenes of small cavity sizes. However, most of these molecular structures could not be determined, and none showed inclusion phenomena contrary to our expectations. Only the molecular structure of a p-xylylene-bridged molecule was confirmed, which possessed a self-inclusion structure in which the bridging unit (p-xylylene) was encapsulated by two azacalixarene cavities. Additionally, it was found that p-methyl-N-(4-picolyl)azacalix[3.1.1.1]arene 1 formed two molecular packing modes depending on the recrystallizing solvents. One is stacked structure by π–π interactions, and another is capsule type structure in which two solvent molecules were encapsulated.
Graphic abstract
A self-inclusion type cage molecule was obtained by connecting N-(4-picolyl)azacalix[3.1.1.1]arene with a p-xylylene unit.
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References
Takemura, H.: Azacalixarenes: synthesis, complexation, and structures. J. Incl. Phenom. 42, 169 (2002)
Takemura, H., Yoshimura, K., Khan, I.U., Shinmyozu, T., Inazu, T.: The first synthesis and properties of hexahomotriazacalix[3]arene. Tetrahedron Lett. 33, 5775 (1992)
Khan, I.U., Takemura, H., Suenaga, M., Shinmyozu, T., Inazu, T.: Azacalixarenes: new macrocyclic molecules with dimethyleneaza bridging of calix[4]arene system. J. Org. Chem. 58, 3158 (1993)
Ito, K., Noike, M., Kida, A., Ohba, Y.: Syntheses of chiral homoazacalix[4]arenes incorporating amino acid residues: molecular recognition for racemic quaternary ammonium ions. J. Org. Chem. 67, 7519 (2002)
Takemura, H., Iwanaga, T., Shinmyozu, T.: Structures and C-H···π interactions in DMF inclusion complexes of homoazacalix[4]arenes. Tetrahedron Lett. 46, 6687 (2005)
Nishio, M.: “Yuki kagakusha no tameno bunsikanryoku nyumon”, Kodan-sha, ISBN: 4-06-153387-8, p. 66. (2000)
Nishio, M., Hirota, M., Umezawa, Y.: The CH/π Interaction: evidence, nature, and consequences. Wiley, Hoboken, ISBN: 978-0-471-25290-0, (1998)
Sameni, S., Jeunesse, C., Matt, D., Toupet, L.: Calix[4]arene-Phosphine Dimers: precursors of flexible metallo-capsules and self-compacting molecules. Chem. Eur. J. 15, 10446 (2009)
Zadmard, R., Taghvaei-Ganjali, S., Gorji, B.: Covalently linked at the lower rim double-calix[4]arene as a precursor for multicavity supramolecular receptor. Synth. Commun. 38, 1830 (2008)
Arduini, A., Credi, A., Faimani, G., Massera, C., Pochini, A., Secchi, A., Semeraro, M., Silvi, S., Ugozzoli, F.: Chem. Eur. J. 14, 98 (2008)
Kerdpaiboon, N., Tomapatanaget, B., Chailapakul, O., Tuntulani, T.: Calix[4]quinones derived from double calix[4]arenes: synthesis, complexation, and electrochemical properties toward alkali metal ions. J. Org. Chem. 70, 4797 (2005)
Hwang, G.T., Kim, B.H.: Synthesis and binding studies of multiple calix[4]arenes. Tetrahedron 58, 9019 (2002)
Notti, A., Occhipinti, S., Pappalardo, S., Parisi, M.F., Pisagatti, I., White, A.J.P., Williams, D.J.: Calix[4]- and calix[5]arene-based multi-cavity macrocycles. J. Org. Chem. 67, 7569 (2002)
Li, J.-S., Chen, Y.-Y., Zhong, Z.-L., Lu, X.-R., Zhang, T., Yan, J.-L.: Convenient preparation of novel calix[n]cryptands (n = 4, 6). Chem. Lett. 28, 881 (1999)
Neri, P., Bottino, A., Cunsolo, F., Piattelli, M., Gavuzzo, E.: 5,5′-Bicalix[4]arene: the bridgeless prototype of double calix[4]arenes of the “head-to-head” type. Angew. Chem. Int. Ed. 37, 166 (1998)
Struck, O., Chrisstoffels, L.A.J., Lugtenberg, R.J.W., Verboom, W., van Hummel, G.J., Harkema, S., Reinhoudt, D.N.: Head-to-head linked double calix[4]arenes: convenient synthesis and complexation properties. J. Org. Chem. 62, 2487 (1997)
Aleksiuk, O., Biali, S.E.: Dixanthylene double calix[6]arene. J. Org. Chem. 61, 5670 (1996)
Asfari, Z., Weiss, J., Vicens, J.: Double-calixarene design, synthesis, and properties. Synlett 1993, 719 (1993)
Asfari, Z., Weiss, J., Pappalardo, S., Vicens, J.: Synthesis and properties of double-calix[4]-arenes, doubly-crowned calix[4]-arenes, and double-calix-crowns. Pure Appl. Chem. 65, 585 (1993)
Arduini, A., Manfredi, G., Pochini, A., Sicuri, A.R., Ungaro, R.: Selective formylation of calix[4]arenes at the ‘upper rim’ and synthesis of new cavitands. J. Chem. Soc. Chem. Commun. 14, 936 (1991)
Kraft, D., Van Loon, J.D., Owens, M., Verboom, W., Vogt, W., McKervey, M.A., Boehmer, V., Reinhoudt, D.N.: Double and triple calix[4]arenes connected via the oxygen functions. Tetrahedron Lett. 31, 4941 (1990)
Boehmer, V., Goldmann, H., Vogt, W., Vicens, J., Asfari, Z.: The synthesis of double-calixarenes. Tetrahedron Lett. 30, 1391 (1989)
Gonzalez-Delgado, A.M., Giner-Casares, J.J., Brezesinski, G., Regnouf-de-Vains, J.-B., Camacho, L.: Langmuir monolayers of an inclusion complex formed by a new calixarene derivative and fullerene. Langmuir 28, 12114 (2012)
Haino, T., Fukunaga, C., Fukazawa, Y.: A new calix[5]arene-based container: selective extraction of higher fullerenes. Org. Lett. 8, 3545 (2006)
Diver, C., Lawrance, G.A.: Trifluoromethanesulphonato-O complexes of platinum(II) and palladium(II). J. Chem. Soc. Dalton Trans. 4, 931 (1988)
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Takemura, H., Mogami, Y., Okayama, K. et al. Synthesis and structures of N-(4-picolyl)azacalix[4]arene and its bridged derivatives. J Incl Phenom Macrocycl Chem 95, 235–246 (2019). https://doi.org/10.1007/s10847-019-00939-1
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DOI: https://doi.org/10.1007/s10847-019-00939-1