Chinese Journal of Applied Chemistry ›› 2015, Vol. 32 ›› Issue (12): 1416-1422.DOI: 10.11944/j.issn.1000-0518.2015.12.150206

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Synthesis and Crystal Structure of Tetraalkyl Resorcinarene Octa[N-(2-pyridylmethyl)acetamides]

MU Huaronga,YAO Yongb,YAN Chaoguob*()   

  1. aCollege of Chemical Engineering,Yangzhou Polytechnic Institute,Yangzhou,Jiangsu 225127,China
    bCollege of Chemistry & Chemical Engineering,Yangzhou University,Yangzhou,Jiangsu 225002,China
  • Received:2015-06-18 Accepted:2015-08-27 Published:2015-12-01 Online:2015-12-01
  • Contact: YAN Chaoguo
  • Supported by:
    Supported by the National Natural Science Foundation of China(No.20972132, No.2130111)

Abstract:

In order to deeply investigate the assembly and function of supramolecular topological structures based on the skeleton of carlixarenes, we launched the study on the synthesis and molecular structures of resorcinarene octasubstituted pyridymethylacetamides. A series of tetraalkyl resorcinarene octa[N-(2-pyridylmethyl)acetamides] was prepared by sequential alkylation of resorcinarene with methyl α-chloroacetate and ammonolysis of the corresponding resorcinarene octaacetates with 2-aminomethylpyridine. Single crystal structures of tetrapropyl resorcinarene acetate, tetrapropyl and tetrahexyl resorcinarene octa(N-2-pyridylmethylacetamides) obtained by X-ray diffraction method indicate that the resorcinarene core adopts rccc(all cis) conformation with two resorcinol rings almost perpendicular to the other two resorcinol rings, four alkyl groups stretching to the lower rim and octa[N-(2-pyridylmethyl)acetamides] groups stretching outside.

Key words: macrocyclic compound, resorcinarene, pyridine, crystal structure, molecular configuration