metathesis from the corresponding iodides. All [NTf2]− salts are liquids at room temperature. [Rmmβpip]X (X− = I−, [CF3CO2]− or [OTf]−) are low-melting solids when R = alkyl, but room temperature liquids upon introduction of ether functionalities on R. Neither of the 3-methylpiperdinium ionic liquids showed any signs of crystallisation, even well below 0 °C. Some related non-C-substituted piperidinium and pyrrolidinium
由
3-甲基哌啶(一种胺的衍
生物)生产了多种基于
3-甲基哌啶鎓阳离子核的室温
离子液体。首先,与1-
溴代烷或产生的相应的叔胺1- bromoalkoxyalkanes(罗反应β
PIP,R =烷基或烷氧基烷基); 与适当的甲基化剂季
铵化进一步反应产生季[RMM β
PIP] X的盐(X - = I -,[CF 3 CO 2 ] -或[光学传递函数] - ; TF = -SO 2 CF 3)和[RMM β点] [NTf 2通过阴离子复分解从相应的
碘化物制备[]。所有[NTf 2 ] -盐在室温下均为液体。[RMM β
PIP] X(X - = I -,[CF 3 CO 2 ] -或[光学传递函数] - )是低熔点的固体,当R =烷基,但在引入醚官能的室温下为液体上R.既不的3-甲基
PI离子液体显示出任何结晶迹象,甚至远低于0°C。一些相关的非C制备了取代的
哌啶鎓和
吡咯烷鎓类似物,并进行了比较研究。报道了1-己基-1