Macrocyclic polyethers as enolate activators in base-catalyzed phase-transfer reactions

A Gobbi, D Landini, A Maia…

文献索引：Landini, Dario; Maia, Angelamaria; Montanari, Fernando; Pirisi, Filippo M. Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999), 1980 , p. 46 - 51

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被引用次数: 17

摘要

A kinetic study of the alkylation reaction of deoxybenzoin (1) with alkylating agents 2-4, catalyzed by PHDB18C6 7 or [2.2. 2, C10] cryptand 8, has been performed in chlorobenzene-aqueous (or solid) base (NaOH, KOH) two-phase systems, under liquid- liquid (LL) and solid-liquid (SL) phase-transfer catalysis (PTC) conditions. The results obtained seem to indicate a multistep mechanism where the ligand transfers the enolate ...