全氟烷基三氰基硼酸钾K [C n F 2 n +1 B(CN)3 ] [ n = 1(1 d),2(2 d)]和单(全氟烷基)氰基氟硼酸钾K [C n F 2 n +1 BF(CN)2 ] [ n = 1(1 c),2(2 c)]和[C n F 2 n +1 BF 2(CN)] − [ n = 1(1 b),2(2 b),3(3 b),4(从K [[C n F 2 n +1 BF 3 ]和Me 3 SiCN开始,可以在几克尺度上以完美的选择性访问4 b)] 。K +盐是制备带有有机阳离子的盐的原料,例如[EMIm] +(EMIm = 1-乙基-3-甲基咪唑鎓)。这些[EMIm] +盐是疏水性室温离子液体(RTIL),在热,化学和电化学方面非常坚固,可提供高达5.8 V的电化学窗口。本文所述的RTIL具有非常低的粘度,最低为14.0 mPa s [EMIm] 1 c在20°C时,[EMIm]的低熔点低至-57°C2
PROCESS FOR THE PREPARATION OF PERFLUOROALKYLCYANO- OR PERFLUOROALKYLCYANOFLUOROBORATES
申请人:Ignatyev Nikolai (Mykola)
公开号:US20120309981A1
公开(公告)日:2012-12-06
The invention relates to a process for the preparation of salts having perfluoroalkyltricyano- or perfluoroalkylcyanofluoroborate anions, ((per)fluoro)phenyltricyano- or ((per)fluoro)phenylcyanofluoroborate anions, phenyltricyanoborate anions which are mono- or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms or phenylcyanofluoroborate anions which are mono- or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms, by reaction of alkali metal trifluoroperfluoroalkylborate with trialkylsilyl cyanide and a subsequent salt-exchange reaction or by direct reaction of an organic trifluoroperfluoroalkyl borate with trialkylsilyl cyanide.