A dramatic effect of the ionic liquid structure in esterification reactions in protic ionic media
作者:Cinzia Chiappe、Sunita Rajamani、Felicia D'Andrea
DOI:10.1039/c2gc35941c
日期:——
Brønsted acidic ionic liquids (ILs) have been synthesized and investigated as catalysts in esterification and transesterification reactions: simple and non-corrosive salts characterized by aliphatic cations associated with an “acidic” anion (in particular, [HSO4]−) gave the higher yields. A quite good correlation between IL acidity (H0) and catalytic ability was found although also the hydrophilic nature of the ionic medium probably affects the process efficiency.
研究了作为酯化和转酯化反应催化剂的Brønsted酸性离子液体(ILs)的合成和性能:由脂肪族阳离子与“酸性”阴离子(特别是[HSO4]−)组成的简单且无腐蚀性的盐,在反应中得到了较高的产率。虽然离子介质的亲水性也可能影响过程的效率,但在离子液体酸度(H0)与催化能力之间发现了一个相当良好的相关性。