Synthesis of Benzoyl C-Phenylcalix[4]resorcinaryl Octaacetate and Cinnamoyl C-Phenylcalix[4]arene for UV Absorbers
A new upper rim-functionalized benzoyl C-phenylcalix[4]resorcinaryl octaacetate and cinnamoyl C-phenylcalix[4]resorcinarene have been synthesized and evaluated as the absorbers for ultraviolet radiation. The benzoyl C-phenylcalix[4]resorcinaryl octaacetate was synthesized in 3 steps. They were synth...
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Veröffentlicht in: | Indonesian journal of chemistry 2014-07, Vol.14 (2), p.160-167 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | A new upper rim-functionalized benzoyl C-phenylcalix[4]resorcinaryl octaacetate and cinnamoyl C-phenylcalix[4]resorcinarene have been synthesized and evaluated as the absorbers for ultraviolet radiation. The benzoyl C-phenylcalix[4]resorcinaryl octaacetate was synthesized in 3 steps. They were synthesis of C-phenilcalix[4]resorcinarene via acid-catalyzed-condensation of resorcinol and benzaldehyde, followed by O-acetylation and Friedel-Craft benzoylation. The cinnamoyl C-phenylcalix[4]resorcinarene was synthesized in 4 steps. They were synthesis of C-phenilcalix[4]resorcinarene via acid-catalyzed-condensation of resorcinol and benzaldehyde, followed by O-acetylation, Friedel-Craft cinnamoylation and hydrolysis. Spectroscopic analysis (UV) showed that the target molecule absorbed the ultraviolet radiation between 200 and 400 nm with the maximum absorption at 240.50 nm (ε = 10.135 M-1 cm-1) and 243.50 nm (ε = 12.135 M-1 cm-1). |
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ISSN: | 1411-9420 2460-1578 |
DOI: | 10.22146/ijc.21253 |