Phase-transfer reactions catalyzed by lipophilic [2.2. 2] cryptands and dicyclohexano-18-crown-6: dehydrating effect of concentrated aqueous alkaline solutions

D Landini, A Maia, F Montanari

文献索引：Landini, Dario; Maia, Angelamaria; Montanari, Fernando Journal of the American Chemical Society, 1984 , vol. 106, # 10 p. 2917 - 2923

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被引用次数: 17

摘要

Abstract: A study of how the concentration of aqueous KOH affects the hydration and hence the reactivity of anions (Cl-, Br-, I-, SCN-, N3-) in aliphatic nucleophilic substitutions catalyzed by lipophilic [2.2. 2, CIo] cryptand (la) and dicyclohexano-18-crown-6 (DCH 18C6)(2) under phase-transfer conditions is reported. A comparison with the same reactions performed in classical liquid-liquid PTC and homogeneous anhydrous conditions is also ...