Review Interfacialcatalysts Processes—The Key Steps of Phase Transfer Catalyzed Reactions Review InterfacialMieczysław Mąkosza Processes—The 1,* and Michał Fedoryński 2 Key Steps of Phase Transfer1 Institute of Organic Catalyzed Chemistry, Polish Reactions Academy of Sciences, Kasprzaka 44/52, 01‐224 Warsaw, Poland 2 Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00‐664 Warsaw, Poland; Mieczysł
[email protected] M ˛akosza 1,* and Michał Fedory ´nski 2 * Correspondence:
[email protected]; Tel: +48‐22‐3432334 1 Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland 2Received:Faculty 18 of November Chemistry, 2020; Warsaw Accepted: University 5 December of Technology, 2020; Published: Noakowskiego 8 December 3, 00-664 2020 Warsaw, Poland;
[email protected] *Abstract:Correspondence: After short
[email protected]; historical introduction, Tel.: + interfacial48-22-3432334 mechanism of phase transfer catalyzed (PTC) reactions of organic anions, induced by aqueous NaOH or KOH in two‐phase systems is Received:formulated. 18 NovemberSubsequently 2020; experimental Accepted: 5 December evidence 2020; that Published: supports 8 the December interfacial 2020 deprotonation as the key initial step of these reactions is presented. Abstract: After short historical introduction, interfacial mechanism of phase transfer catalyzed (PTC) reactionsKeywords: of organiccarbanions; anions, dichlorocarbene; induced by aqueous sodium NaOH hydroxide; or KOH ininterfacial two-phase processes;