Trifluoromethyl)phenyl]borate Research Articles

Anion-catalyzed Phase-transfer Catalysis. II. Effects of Anionic Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate Catalyst in Phase-transfer-catalyzed Sulfonium Ylide Formation

Abstract Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB) ion as an anionic phase-transfer catalyst promoted the formation of oxirane from various carbonyl substrates and trimethylsulfonium chloride in a two-phase mixture of dichloromethane and concentrated aqueous sodium hydroxide.

Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate. Highly Lipophilic Stable Anionic Agent for Solvent-extraction of Cations

Abstract Tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (TFPB) anion was highly lipophilic, practically insoluble in water, and durable against acid and oxidants. Partition equilibria of alkali TFPB between water and organic solvents and the stability in acid media are described and compared with the properties of the parent tetraphenylborate and of some fluorine-containing homologues.