Colorful Chemical Demonstrations on the Extraction of Anionic Species from Water into Ether Mediated by Tricaprylylmethylammonium Chloride (Aliquat 336), a Liquid–Liquid Phase-Transfer Agent
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Patrick Gordon [1] ; Anil Joseph Pezhathinal [2] ; Kerensa Rocke [2] ; Louis Susanto [2] ; Derek Handke [2] ; Roch Chan-Yu-King [2]
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[1] Simmons College
Simmons College
City of Boston, Estados Unidos
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[2] University of Science and Arts of Oklahoma
University of Science and Arts of Oklahoma
Estados Unidos
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- Localización: Journal of chemical education, ISSN 0021-9584, Vol. 83, Nº 8, 2006, pág. 1161
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
Liquid–liquid phase transfer catalysis (LLPTC) plays an ever-increasing role in academic research and in the large scale industrial production of chemicals. This method involves a biphasic medium composed of water and an organic solvent in which the LLPT-catalyst plays a critical role in the transport of some water-soluble reagents (e.g., nucleophiles or bases) from water into the organic layer. This article provides a list of easy to perform and relatively safe experiments that may be used to demonstrate the extraction of some colorful water-soluble reagents by Aliquat 336 into ether. This demonstrative process serves to simulate the preliminary extractive step of an ionic species in LLPT-catalyzed reactions and introduce various undergraduate chemistry concepts and principles to students.
