申请人:Aventis Research & Technologies GmbH & Co. KG
公开号:US06103659A1
公开(公告)日:2000-08-15
Catalyst for halogen-fluorine exchange reactions on aromatics, consisting essentially of a mixture of one or more compounds of the component a) plus at least one compound of the components b), c) and/or d), wherein a) is an amidophosphonium salt of the formula (I) ##STR1## where A.sup.1, A.sup.2, A.sup.3, A.sup.4, A.sup.5, A.sup.6, A.sup.7, A.sup.8 are, independently of one another, identical or different and are each a straight-chain or branched alkyl or alkenyl having from 1 to 12 carbon atoms, cycloalkyl having from 4 to 8 carbon atoms, an aryl having from 6 to 12 carbon atoms, an aralkyl having from 7 to 12 carbon atoms, or A.sup.1 A.sup.2, A.sup.3 A.sup.4, A.sup.5 A.sup.6, A.sup.7 A.sup.8 are, independently of one another, identical or different and are in each case connected to one another either directly or via O or N--A.sup.9 to form a ring having from 3 to 7 ring atoms, A.sup.9 is an alkyl having from 1 to 4 carbon atoms and B.sup..crclbar. is a monovalent acid anion or the equivalent of a polyvalent acid anion, b) a quaternary ammonium salt, c) a quaternary phosphonium salt, and d) a crown ether or a polyether of the formula (IV): R.sup.10 --(O--O.sub.x H.sub.2x).sub.r --OR.sup.11 (IV).
芳香族卤素-
氟交换反应的催化剂,主要由组分a)的一个或多个化合物的混合物组成,以及至少一个组分b)、c)和/或d)的化合物,其中a)是具有以下式(I)的酰胺
磷盐:其中A.sup.1、A.sup.2、A.sup.3、A.sup.4、A.sup.5、A.sup.6、A.sup.7、A.sup.8独立地相同或不同,每个都是具有1至12个碳原子的直链或支链烷基或烯烃,具有4至8个碳原子的环烷基,具有6至12个碳原子的芳香族,具有7至12个碳原子的芳基烷基,或A.sup.1 A.sup.2、A.sup.3 A.sup.4、A.sup.5 A.sup.6、A.sup.7 A.sup.8独立地相同或不同,并且分别直接连接在一起或通过O或N-A.sup.9连接在一起形成具有3至7个环原子的环,A.sup.9是具有1至4个碳原子的烷基,B.sup..crclbar.是一价酸根离子或多价酸根离子的等效物,b)是季
铵盐,c)是季
磷盐,d)是具有以下式(IV)的
冠醚或聚醚:R.sup.10 --(O--O.sub.x H.sub.2x).sub.r --OR.sup.11 (IV)。