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 : Science and Education Publishing

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

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