Figure 3. Scheme of the BASIL™ process. The chlorophenylphosphine reacts with the alcohol in a jet stream reactor to the alkoxyphenylphosphine. The hydrogen chloride generated in the reaction is scavenged with 1-methylimidazole forming the IL 1-methylimidazolium chloride, that is in liquid state under the applied reaction conditions. Due to the different polarity and density, a liquid biphasic system is formed that can be easily worked up. The upper phase contains thereby the solvent-free product while the ionic liquid is localized in the lower phase. The initial 1-methylimidazole is regenerated by neutralization with sodium hydroxide for reuse in further production cycles


From Current Science to School – the Facets of Green Chemistry on the Example of Ionic Liquids

Daniel Rauber, Frederik Philippi, Johann Seibert, Johannes Huwer, Harald Natter, Rolf Hempelmann

World Journal of Chemical Education. 2019, 7(2), 153-165 doi:10.12691/wjce-7-2-15