申请人:——
公开号:US20020169071A1
公开(公告)日:2002-11-14
Ionic liquids are immobilised on a functionalised support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilised via the anion by treating a support with an anion source, e.g., an inorganic halide, before the ionic liquid is applied or formed. Alternatively, the ionic liquid may be immobilised by having the cation covalently bound to the support, e.g., through silyl groups, or incorporated in the support by synthesising the support in the presence of a suitable base. The immobilised ionic liquids are of use as catalysts, for example, for the Friedel-Crafts reaction
离子液体被固定在功能化载体上,该载体携带或含有离子液体的一种成分或这种成分的前体。离子液体可以通过阴离子固定,方法是在涂抹或形成离子液体之前,用阴离子源(如无机卤化物)处理支撑物。另外,离子液体也可以通过阳离子与载体共价结合(如通过硅烷基团)来固定,或通过在合适的碱存在下合成载体来将阳离子与载体结合。固定化离子液体可用作催化剂,例如用于弗里德尔-卡夫斯反应