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DOI: 10.1055/s-2004-822372
Organoindate Room Temperature Ionic Liquid: Synthesis, Physicochemical Properties and Application
Publication History
Received
29 December 2003
Publication Date:
10 May 2004 (online)
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Abstract
The combination of equimolar amounts of solid 1-n-butyl-3-methylimidazolum chloride (BMI·Cl) with solid indium trichloride affords the new room temperature and air stable ionic liquid BMI·InCl4 (mp -6 °C). The major physicochemical properties (density, viscosity, electrical conductivity and electrochemical window) of BMI·InCl4 are complementary to those of classical tetrafluoroborate or hexafluorophosphate analogues. However, this liquid possesses similar Lewis acidity properties to those of organoaluminate melts and can be used as recyclable media, as demonstrated here for the tetrahydropyranylation of alcohols.
Key words
organoindate - ionic liquid - physicochemical properties - Lewis acid catalysis - tetrahydropyranylation - electrospray ionization mass spectrometry