Chemical Research in Chinese Universities ›› 2014, Vol. 30 ›› Issue (6): 919-924.doi: 10.1007/s40242-014-4292-7

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Synthesis and Properties of Functionalized Schiff Bases of 5α,10α-Di(4-hydroxylphenyl)calix[4]pyrrole and 5α,15β-Di(4-hydroxylphenyl)calix[4]pyrrole

HAN Ying, SUN Juanjuan, WANG Genliang, YAN Chaoguo   

  1. College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
  • Received:2014-07-30 Revised:2014-09-04 Online:2014-12-01 Published:2014-09-15
  • Contact: HAN Ying, YAN Chaoguo E-mail:hanying@yzu.edu.cn;cgyan@gzu.edu.cn
  • Supported by:

    Supported by the National Natural Science Foundation of China(No.21172190) and the Priority Academic Program Deve- lopment of Jiangsu Higher Education Institutions, China.

Abstract:

A series of calix[4]pyrrole meso-substituted Schiff bases was synthesized with 5α,10α-di(4-hydroxylphenyl)calix[4]pyrrole or 5α,15β-di(4-hydroxylphenyl)calix[4]pyrrole as starting materials. The synthetic routes included alkylation with methyl α-chlroroaceate, ammonolysis with alkylene diamine, and condensation with salicylladehyde or 2-hydroxynaphthaldehyde. The crystal structures of the new calix[4]pyrroles and their Schiff bases were determined by X-ray diffraction. The coordination properties of the representative calix[4]pyrrole Schiff bases to transition metal ions were also investigated by UV-Vis spectra.

Key words: Calix[4]pyrrole, Schiff base, Macrocycle, Crystal structure, UV-Vis spectroscopy