Key role of water for nucleophilic substitutions in phase-transfer-catalyzed processes: A mini-review
Articolo
Data di Pubblicazione:
2001
Citazione:
Key role of water for nucleophilic substitutions in phase-transfer-catalyzed processes: A mini-review / D. Albanese, D. Landini, A. Maia, M. Penso. - In: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH. - ISSN 0888-5885. - 40:11(2001), pp. 2396-2401.
Abstract:
The fundamental role of water in anion-promoted reactions carried out under both liquid-liquid and solid-liqiud phase-transfer catalysis (LL- and SL-PTC:, respectively) conditions is reviewed. In particular, the hydration effect on the quaternary onium salt extraction constants, anion selectivity coefficients, and anion reactivity under LL-PTC conditions is reported. The effect of added water on SL-PTC reaction rates is also included. In addition, guidelines for optimizing the amount of water in the application of PTC to organic synthesis are proposed.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
D. Albanese, D. Landini, A. Maia, M. Penso
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