申请人:——
公开号:US05110778A1
公开(公告)日:1992-05-05
Boron, aluminum and gallium C.sub.1 -C.sub.18 perfluoroalkane-sulfonates (CF.sub.3 (CF.sub.2).sub.n SO.sub.3).sub.3 M (M=B, A1, Ga; n=0-17) as well as perfluororesin sulfonates such as Nafionates are new, highly effective Friedel-Crafts catalysts. In contrast to volatile aluminum and boron trihalides, the Group III-B perfluoroalkanesulfonates are generally of low or no volatility and, except for boron triflate and some of its homologs, only sparingly soluble incommon organic solvents. This allows their use as solid or supported Friedel-Crafts catalysts of wide utility and scope in continuous heterogenous catalytic processes. At the same time, boron triflate and related lower perfluoroalkanesulfonates are particularly efficient soluble catalysts in solution reactions.
硼,铝和镓C.sub.1-C.sub.18全氟烷基磺酸盐(CF.sub.3(CF.sub.2).sub.n SO.sub.3).sub.3 M(M = B,A1,Ga; n = 0-17),以及类似Nafionates的全氟树脂磺酸盐是新的,高效的Friedel-Crafts催化剂。与挥发性的铝和硼卤化物不同,III-B族的全氟烷基磺酸盐通常具有低或无挥发性,并且除了硼三氟酸盐和其一些同系物外,仅在常见有机溶剂中略溶。这使它们可以作为广泛实用的固体或支撑型Friedel-Crafts催化剂在连续的异相催化过程中使用。与此同时,硼三氟酸盐和相关的低全氟烷基磺酸盐在溶液反应中特别高效。