[Hmim]3PW12O40: A high-efficient and green catalyst for the acetalization of carbonyl compounds

Article abstract of DOI:10.1016/j.cclet.2010.02.004

[Hmim]₃PW₁₂O₄₀ was developed and used in the acetalization of carbonyl compounds in excellent yields. The ionic liquid-heteropoly acid hybrid compound and reaction medium formed temperature-dependent phase-separation system with the ease of product as well as catalyst separation. The catalyst was recycled more than 10 times without any apparent loss of catalytic activity.