Synthesis, structure, and unprecedented solubility of lipophilic borate salts

• Verfasst von: Wrede, Michael [VerfasserIn]
• Verfasst von: Frank, Viktoria [VerfasserIn]
• Verfasst von: Kannenberg, Gerri [VerfasserIn]
• Verfasst von: Rominger, Frank [VerfasserIn]
• Verfasst von: Straub, Bernd Franz [VerfasserIn]
• Titel: Synthesis, structure, and unprecedented solubility of lipophilic borate salts
• Verf.angabe: Michael Wrede, Viktoria Ganza, Geraldt Kannenberg, Frank Rominger, Bernd F. Straub
• Jahr: 2011
• Umfang: 5 S.
• Fussnoten: Available online 28 December 2010 ; Gesehen am 05.12.2022
• Titel Quelle: Enthalten in: Inorganica chimica acta
• Ort Quelle: New York, NY [u.a.] : Elsevier, 1967
• Jahr Quelle: 2011
• Band/Heft Quelle: 369(2011), 1, Seite 71-75
• ISSN Quelle: 0020-1693
• DOI: doi:10.1016/j.ica.2010.12.039
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Anions
• Sach-SW: Boron
• Sach-SW: Lipophilicity
• Sach-SW: Sodium
• Sach-SW: Solubility
• K10plus-PPN: 1824420765

Abstract

The multi-gram scale preparation of halide free lipophilic borate salts from inexpensive precursor compounds 3,3′,5,5′-tetra-tert-butyl-2,2′-biphenol and tetrahydridoboranate salts is reported. The so-called “bortebate” anion is more stable against water and bases than its aluminum analog “altebate”, but bortebate formation is significantly slower. Bortebate salts are highly soluble in hydrocarbon solvents, e.g. >35mmol/L lithium bortebate in pentane at 20°C. Quantitative salt metathesis reactions between sodium bortebate and halide salts can be easily achieved by precipitation of the sodium halide in methylene chloride.