DOI QR코드

DOI QR Code

Synthesis and Molecular Structure of Calix[4]arene Butanoate 1,2-Alternate Conformer

  • 발행 : 1996.05.20

초록

Three conformational isomers of calix[4]arene butanoate were isolated from the reaction of calix[4]arene and butanoyl chloride in the presence of NaH and their structures were determined by NMR spectra as 1,2-alternate 2a, partial cone 2b and 1,3-alternate conformer 2c, respectively. The crystal structure of 2a has been determined by X-ray diffraction method. The crystals are monoclinic, space group C2/c, a=18.435 (4), b=13.774 (2), c=16.941 (3) Å, β=116.23 (1)°, Z=4, V=3858.8 (12)Å3, Dc=1.21 g cm-3, Dm=1.21 g cm-3. The molecule is in the 1,2-alternate conformation. It has two-fold symmetry axis along the line connecting between C (7AA') and C (7BB') parallel to the b axis of crystal lattice.

키워드

참고문헌

  1. J. Org. Chem. v.56 Iwamoto, K.;Araki, K.;Shinkai, S.
  2. Chem. Lett. Araki, K.;Iwamoto, K.;Shinkai, S.;Matsuda, T.
  3. Tetrahedron v.47 Iwamoto, K.;Araki, K.;Shinkai, S.
  4. J. Org. Chem. v.57 Iwamoto, K.;Shinkai, S.
  5. J. Am. Chem. Soc. v.113 Groenen, L. C.;van Loon, J-D.;Verboom, W.;Harkema, S.;Casnati, A.;Ungaro, R.;Pochini, A.;Ugozzoli, F.;Reinhoudt, D. N.
  6. Shelxs-86 and Shelxl-93, Program for Crystal Struc ture Determination Sheldrick, G. M.
  7. Internatioanl Table for X-ray Crystallography v.IV
  8. Royal Society of Chemistry Gutsche, C. D. Calixarenes;Stoddart, J. F.(Ed.)
  9. Calixarenes: A Versatile Class of Macrocyclic Compounds Vicens, J.;Bohmer, V.(Eds.)
  10. Angew. Chem. Int. Ed. Eng. v.34 Bohmer, V.
  11. Tetrahedron Lett. v.22 Gutsche, C. D.;Bauer, L. J.
  12. J. Am. Chem. Soc. v.103 Gutsche, C. D.;Dhawan, B.;No, K. H.;Muthukrishnan, R.
  13. Tetrahedron v.38 Bocchi, V.;Foina, D.;Pochini, A.;Ungaro, R.;Andreetti, C. D.
  14. J. Incl. Phenom. v.5 Bott, S. G.;Coleman, A. W.;Atwood, J. L.
  15. Pure & Appl. Chem. v.62 Gutsche, C. D.;Rogers, J. S.;Stewart, D.;See, K.
  16. J. Am. Chem. Soc. v.115 Gibbs, C. G.;Gutsche, C. D.