Extraction Lab Report - Google Docs.pdf - Extraction Experiment 2 Mikayla Eppert Section B01 Arjun Paudel Purpose This experiment aimed to utilize

Extraction Lab Report - Google Docs.pdf - Extraction...

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Extraction Experiment 2 Mikayla Eppert Section B01 Arjun Paudel September 23, 2019
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Purpose: This experiment aimed to utilize various extraction techniques to extract organic-nonpolar terpenes from organic-polar compounds in citrus peels and also to extract individual compounds based on relative pH from a mixture of p-toluic acid, acetanilide, and p-tert-butylphenol. Reduction: E,E-2,4-hexadienal + NaBH3 + Ethanol→ BH3 + Na (salt) + E,E-2,4-hexadien-1-ol + ⁻OCH2CH3 Tandem Diels-Alder/Intramolecular Acylation: E,E-2,4-hexadien-1-ol + Maleic Anhydride → Desired Product Experimental: Located in pages 10-11 in the lab notebook. Results & Discussion: Part 1: Extraction from Citrus Peels A liquid CO2 extraction to extract terpenes--a group of nonpolar organic compounds from citrus peels--was used. From the lemon peel, 3.00 grams of peel was placed into the extraction tube and, after completing the extraction, 1.90 grams of oil was extracted yielding 63.18% essential oil content of the lemon peel. After being subjected to gas chromatography on GC1, the following were observed in the sample: no limonene, β-myrcene at a retention time of 3.532, α-pinene at a retention time of 3.282, and γ-terpinene at a retention time of 4.382. β-myrcene had an integration of 509,689 (2.96% area percent), α-pinene had an integration of 301,162(1.75% area percent), and γ-terpinene had an integration of 10,067,587(58.47% area percent). The terpene γ-terpinene was present in the largest amount compared to the other observed terpenes. The IR spectra for the essential oil was consistent with γ-terpinene as the largest component as the peaks correspond to
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those of nonpolar carbon chains. Our IR spectra showed a peak at 3070.79cm-1 which is consistent with an alkene and
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