Analysis by RP-HPLC and Purification by RP-SPE of the -Tetra(-hydroxyphenyl)resorcinolarene and Stereoisomers.
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2019
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Abstract
A method for the separation of stereoisomer mixture of the octol -tetra(-hydroxyphenyl)calix[4]resorcinarene that was obtained by an acid cyclocondensation reaction between resorcinol and benzaldehyde is reported in this paper. A crude product from octol formation reaction was analyzed by reverse-phase high-performance liquid chromatography (RP-HPLC), and two well-resolved signals corresponding to the and isomers were found. A reverse phase in solid-phase extraction (RP-SPE) protocol allowed the separation of the two stereoisomers with high purity of each isomer. Finally, the crude and purified stereoisomers were characterized by using FT-IR, H-NMR, and C-NMR techniques, confirming the chemical identity of the two isomers and the efficiency in the separation process.
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castilloaguirre2019analysisjournal
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| Authors | Castillo-Aguirre, Alver A;Rivera Monroy, Zuly Jenny;Maldonado, Mauricio; |
| Journal | journal of analytical methods in chemistry |
| Year | 2019 |
| DOI |
10.1155/2019/2051282
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