Extraction of Maltol from Fraser Fir: A Comparison of Microwave-Assisted Extraction and Conventional Heating Protocols for the Organic Chemistry Laboratory

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• 作者：Andrew S. Koch ; Clio A. Chimento ; Allison N. Berg ; Farah D. Mughal ; Jean-Paul Spencer ; Douglas E. Hovland ; Bessie Mbadugha ; Allan K. Hovland ; Leah R. Eller
• 刊名：Journal of Chemical Education
• 出版年：2015
• 出版时间：January 13, 2015
• 年：2015
• 卷：92
• 期：1
• 页码：170-174
• 全文大小：225K
• ISSN：1938-1328

文摘

Two methods for the extraction of maltol from Fraser fir needles are performed and compared in this two-week experiment. A traditional benchtop extraction using dichloromethane is compared to a microwave-assisted extraction using aqueous ethanol. Students perform both procedures and weigh the merits of each technique. In doing so, students see a trade-off between the ease of working with a highly volatile organic solvent and the selectivity that can be achieved with the greener solvent combination. This experiment combines multiple lab techniques, highlights the connections between chemistry and biology, and provides straightforward ¹H NMR spectra to support the introduction of spectroscopy in first-semester organic chemistry.