National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, China.
ChemistryOpen. 2021 Apr;10(4):477-485. doi: 10.1002/open.202000318.
A series of tetraimidazolium salts with different anions was prepared and applied in the isomerization of β-pinene oxide. After examining the activity of different catalysts, a remarkable enhancement of the selectivity of perillyl alcohol (47 %) was obtained over [PEimi][HNO ] under mild reaction conditions and using DMSO as the solvent. Furthermore, noncovalent interactions between solvent molecules and the catalyst were found by FT-IR spectroscopy and confirmed by computational chemistry. The homogeneous catalyst showed excellent stability and was reused up to six times without significant loss.
制备了一系列不同阴离子的四咪唑鎓盐，并将其应用于β-蒎烯氧化物的异构化反应中。在考察了不同催化剂的活性后，在温和的反应条件下，以 DMSO 为溶剂，[PEimi][HNO3] 表现出了对紫苏醇（47%）的显著选择性提高。此外，通过傅里叶变换红外光谱（FT-IR）和计算化学证实了溶剂分子与催化剂之间存在非共价相互作用。该均相催化剂表现出优异的稳定性，可重复使用六次以上，且没有明显的损失。
