Synthesis of Patchouli Esters from Patchouli Oil in the Presence of Homogeneous and Heterogeneous Catalysts
Patchouli alcohol was isolated from patchouli oil by fractional distillation under reduced pressure. Patchouli esters were then prepared from the isolated patchouli alcohol via esterification reaction in the presence of homogeneous (concentrated hydrochloric acid) and heterogeneous (acid-activated b...
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| Main Authors: | , , , |
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| Format: | Other NonPeerReviewed |
| Published: |
Materials Science Forum
2022
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| Subjects: | |
| Online Access: | https://repository.ugm.ac.id/284484/ https://www.scientific.net/MSF.1061.145 |
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| Institution: | Universitas Gadjah Mada |
| Summary: | Patchouli alcohol was isolated from patchouli oil by fractional distillation under reduced pressure. Patchouli esters were then prepared from the isolated patchouli alcohol via esterification reaction in the presence of homogeneous (concentrated hydrochloric acid) and heterogeneous (acid-activated bentonite) catalysts. Fractional distillation under reduced pressure was carried out by heating patchouli oil under the pressure of 30 mmHg. The esterification reaction was carried out by heating patchouli alcohol with propionic acid in the presence of the acid catalysts at 100–110 ℃ for 3 h. The products were characterized using FTIR and GC-MS spectrometers. The esterification reaction with HCl 37% and bentonite catalysts produced patchouli propionate in 26 and 21% yields, respectively |
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