Synthesis of High‐Purity Imidazolium Tetrafluoroborates and Bis(oxalato)borates. Issue 10 (23rd January 2017)

• Record Type: Journal Article
• Authors: Schmitz, Paulo; Jakelski, Rene; Jalkanen, Kirsi; Winter, Martin; Bieker, Peter
• Is Part Of: Chemistry. Volume 23:Issue 10(2017)
• Page Start: 2261
• Page End: 2264
• Publication Date: 2017-01-23
• Subjects: borates -- flashpoints -- ionic liquids -- room-temperature molten salts -- synthetic methods; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201604461
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: The synthesis and purification of imidazolium‐based ionic liquids (ILs) with boron‐containing anions is reported. The scope was the optimization of the meta thesis reaction and on the purification of the synthesized ILs. It was possible to reduce the reaction and purification times, to avoid the use of acetonitrile as processing solvent, and to increase the yield compared to the known procedure for [BOB] − anion‐containing ILs. Furthermore, to the best of our knowledge the flashpoints of the ILs could be determined for the first time by the continuously closed‐cup flashpoint (CCCFP) method. Abstract : IL? Better ! The synthesis and purification of imidazolium‐based ionic liquids (ILs) with boron‐containing anions is reported. It was possible to shorten the reaction and purification times, to avoid the use of acetonitrile as processing solvent, and to increase the yield compared to the known procedure for bis(oxalato)borate‐containing ILs. Flashpoints of the ILs could be exactly determined by the continuously closed‐cup flashpoint method.