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1-Butyl-3-methylimidazolium tetrachloroaluminate is an ionic liquid that can be prepared by reacting 1-butyl-3-methylimidazolium chloride with aluminum chloride hexahydrate.
BI-0270 (OTTO) 1-Butyl-3-methylimidazolium tetrachloroaluminate, 95% Cas 80432-09-3 - used as an efficient catalyst during tetrahydropyranylation of alcohols and also detetrahydropyranylation of THP protected ethers.