Several new chiral imidazolinium ionic liquids (CILs) have been synthesized by using optically pure dehydroabietic acid (DA) as the chiral precursor. Their enantiomeric recognition abilities were measured using rac-mandelic acid n-Bu₄N salt as the substrate by NMR spectroscopy. Based on the structure-interaction relationships, the bulky anion and the side chain linking the DA group to the imidazole ring have crucial effects on CIL recognition. The ¹H NMR measurements indicated that [MimMeDA]NTf₂ exhibits good and versatile molecular recognition ability. The new DA-based CILs reported here may be interesting chiral media for enantioselective reactions and useful in enantiomeric separations.

通过使用光学纯的脱氢松香酸（DA）作为手性前体，合成了几种新型手性咪唑啉鎓离子液体（CIL）。通过rac-扁桃酸n- Bu ₄ N盐作为底物通过NMR光谱法测量它们的对映体识别能力。基于结构-相互作用关系，大阴离子和连接DA基团与咪唑环的侧链对CIL识别具有关键作用。的^1个1 H NMR测量表明，[MimMeDA] NTF ₂显示出良好的和通用的分子识别能力。此处报道的新的基于DA的新CIL可能是用于对映选择性反应的有趣手性介质，可用于对映体分离。