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Acid and Base Water Coexists in a Micro‐Structured Ionic Liquid and Catalyzes Organic Reactions in One‐Pot

Von Wiley-VCH zur Verfügung gestellt

The Cover Feature artistically shows that when 5 wt% acid water is added to a conventional ionic liquid, such as 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]), with a simple pipette, water microdroplets of ∼1 μm spontaneously form at room temperature. In their Research Article, A. Leyva-Pérez and co-workers describe that the same effect occurs when basic water is added, and also when both acidic and basic water are added sequentially. The microdroplets form without mixing. The microstructured acid/base liquid system performs as a catalyst/solvent system for one-pot organic reactions, such as the rearrangement of stilbene oxide, one-pot ketal hydrolysis/Knoevenagel condensation, or Pd/Cu-catalysed one-pot Sonogashira coupling/silane deprotection/Au-catalysed alkyne hydration. This extremely simple acid/base system is a rare example of co-existing simple acids (i.e., HCl) and bases (i.e., KOH). More information can be found in the Research Article by A. Leyva-Pérez and co-workers.


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