Fluorine‐Containing Ionic Liquids from
<i>N</i>
‐Alkylpyrrolidine and
<i>N</i>
‐Methylpiperidine and Fluorinated Acetylacetones: Low Melting Points and Low Viscosities
作者:Xiaoju Li、Zhuo Zeng、Sonali Garg、Brendan Twamley、Jean'ne M. Shreeve
DOI:10.1002/ejic.200800448
日期:2008.7
of them show relatively low melting points and low viscosities. The influence of fluorinated 1,3-diketonate anions and the structural variation in cyclic amine cations on the above physicochemical properties was examined. X-ray single-crystal diffraction analysis of compound 7 confirms the proton transfer from 4,4,4-trifluoro-1-phenyl-1,3-butanedione to N-butylpyrrolidine. (© Wiley-VCH Verlag GmbH &
通过 N-烷基吡咯烷、N-甲基哌啶和氟化 1,3-二酮反应,高产率合成了一系列新型含氟离子液体 (3-14):1,1,1,5,5,5-六氟乙酰丙酮、1,1,1-三氟-2,4-戊二酮和4,4,4-三氟-1-苯基-1,3-丁二酮。测定了它们的性质,例如相变温度、密度和粘度。它们中的大多数表现出相对低的熔点和低粘度。检查了氟化 1,3-二酮酸阴离子和环胺阳离子的结构变化对上述物理化学性质的影响。化合物 7 的 X 射线单晶衍射分析证实了从 4,4,4-三氟-1-苯基-1,3-丁二酮到 N-丁基吡咯烷的质子转移。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008)