Chiral imidazolium salts that can be classified as ionic liquids (ILs) were derived from the ‘chiral pool’ precursors camphor, β-pinene, and tartaric acid. ILs containing chiral imidazolium cations as well as chiral anions were synthesized. Furthermore, the anion of the IL 1-methyl-3-[(S)-2′-methylbutyl]imidazolium tosylate was substituted on an ion-exchange resin for the chiral (S)-camphorsulfonate anion thus forming the first well-characterized ‘doubly chiral’ IL.
可以被归类为
离子液体 (ILs) 的手性
咪唑盐是从“手性池”前体
樟脑、β-松烯和
酒石酸衍生而来的。合成了含有手性
咪唑阳离子以及手性阴离子的IL。此外,IL 1-甲基-3-[(S)-2′-甲基丁基]
咪唑盐的阴离子在离子交换
树脂上被替换为手性 (S)-
樟脑磺酸盐阴离子,从而形成了第一个经过良好表征的“双重手性”IL。