The invention relates to chiral ionic liquids of the general formula
[A]
n
+
[Y]
n−
,
whereby n=1 or 2, the anion [Y]
n−
is the anion of an organic or inorganic proton acid and the cation [A]
+
an optically active organic ammonium cation with up to 50 carbon atoms, at least one chirality center and at least one functional group that can produce a co-ordination by forming hydrogen bridges or by providing free electron pairs. At least one chirality center is provided with a distance of up to 5 atomic bonds from the functional group. The invention also relates to a method for producing said chiral ionic liquids and to the use thereof in methods for the asymmetric synthesis, the asymmetric catalysis and for separating racemates.
该发明涉及通式为[A]n+[Y]n−的手性
离子液体,其中n=1或2,阴离子[Y]n−是有机或无机质子酸的阴离子,阳离子[A]+是具有最多50个碳原子、至少一个手性中心和至少一个可以通过形成氢键或提供自由电子对而产生配位的手性有机
铵阳离子。至少一个手性中心与功能基之间的距离最多为5个原子键。该发明还涉及制备该手性
离子液体的方法以及在不对称合成、不对称催化和拆分拉克酸盐的方法中使用它们。