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Research on the synthesis of the BCAC4ND2 ionophore from p-t-butylcalix[4]arene ethylester has been carried out. This study aims to synthesize the BCAC4ND2 ionophor from p-t-butylcalix[4]arene ethylester. The BCAC4ND2 ionophore is synthesized by hydrolyzing p-t-butylcalix[4]arene ethylester in aqueous KOH-ethanol of 95%. The hydrolysis reaction of these base-promoted esters are refluxed for 28 hours at 78 o C. The BCAC4ND2 ionophore was identified and characterized by melting point, thin layer chromatography (TLC), FTIR, 1 H-NMR, and 13 C-NMR spectrometers. The BCAC4ND2 ionophore obtained was in the form of white solid (62.38% recovery), a melting point 326-328 o C, and TLC (SiO2, ethanol : ethylacetate = 1 : 1 v/v, Rf = 0.93).

Synthesis of the BCAC4ND2 Ionophore from p-t-Butylcalix[4]arene Ethylester