Research Article

Synthesis and Structural Characterization of Mono Acid-type partial Cone Conformation Azocalix[4]arene

Volume: 6 Number: 1 May 7, 2022
  • Serkan Elçin

Synthesis and Structural Characterization of Mono Acid-type partial Cone Conformation Azocalix[4]arene

Abstract

The synthesis of chromogenic mono acid-type azocalix[4]arene derivatives is described in this study. From p-tertbutylcalix[4]arene, which was made with p-tert-butylphenol as a starting material, a new family of azocalix[4]arene monocarboxylic acid derivatives (5a-d) were synthesized. Four azocalix[4]arenes (3a-d) were produced by attaching 4-methoxy-, 4-ethyl-, 4-chloro-, and 4-bromoaniline to 25,26,27,28-tetrahydroxycalix[4]arene through a diazo-coupling reaction. To obtain partial cone conformation acid derivatives, their mono ester units were synthesized with ethyl bromoacetate and hydrolyzed in a basic media (5a-d). Products were obtained in suitable (79-92 %) yields, with 25-(carboxymethoxy)-26,27,28- trihydroxy-5,11,17,23-tetra(4-methoxyphenyl)azocalix[4]arene (5a) being the product with the highest yield (92 %). FT-IR and 1H-NMR spectroscopy approaches, as well as elemental analysis techniques, were used to elucidated the synthesized
products.

Keywords

References

  1. [1] H. Deligz, S. Memon, Overview on Metal Cations Extraction by Azocalixarenes, Pakistan Journal of Analytical & Environmental Chemistry 12(1 & 2) (2011) 24.
  2. [2] S. Shimizu, S. Shirakawa, T. Suzuki, Y. Sasaki, Water-soluble calixarenes as new inverse phase-transfer catalysts. Their application to aldol-type condensation and Michael addition reactions in water, Tetrahedron 57(29) (2001) 6169-6173.
  3. [3] S. Elçin, M.M. Ilhan, H. Deligöz, Synthesis and spectral characterization of azo dyes derived from calix [4] arene and their application in dyeing of fibers, Journal of Inclusion Phenomena and Macrocyclic Chemistry 77(1) (2013) 259-267.
  4. [4] J. Rebek Jr, Host–guest chemistry of calixarene capsules, Chemical Communications (8) (2000) 637-643.
  5. [5] K. Sharma, P. Cragg, Calixarene based chemical sensors, Chemical sensors 1(9) (2011) 1-18.
  6. [6] I. Leray, B. Valeur, Calixarene‐based fluorescent molecular sensors for toxic metals, European Journal of Inorganic Chemistry 2009(24) (2009) 3525-3535.
  7. [7] X. Fan, X. Guo, Development of calixarene-based drug nanocarriers, Journal of Molecular Liquids 325 (2021) 115246.
  8. [8] W. Śliwa, Calixarene complexes with transition metal ions, Journal of inclusion phenomena and macrocyclic chemistry 52(1) (2005) 13-37.

Details

Primary Language

English

Subjects

Organic Chemistry

Journal Section

Research Article

Authors

Serkan Elçin This is me
Türkiye

Publication Date

May 7, 2022

Submission Date

May 7, 2022

Acceptance Date

-

Published in Issue

Year 2022 Volume: 6 Number: 1