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.
Perfluoroalkyltricyanoborate and Perfluoroalkylcyanofluoroborate Anions: Building Blocks for Low-Viscosity Ionic Liquids
作者:Johannes Landmann、Jan A. P. Sprenger、Philipp T. Hennig、Rüdiger Bertermann、Matthias Grüne、Frank Würthner、Nikolai V. Ignat'ev、Maik Finze
DOI:10.1002/chem.201703685
日期:2018.1.12
K[CnF2 n+1B(CN)3] [n=1 (1 d), 2 (2 d)] and the potassium mono(perfluoroalkyl)cyanofluoroborates K[CnF2 n+1BF(CN)2] [n=1 (1 c), 2 (2c)] and [CnF2 n+1BF2(CN)]− [n=1 (1 b), 2 (2 b), 3 (3 b), 4 (4 b)] are accessible with perfect selectivities on multi‐gram scales starting from K[CnF2 n+1BF3] and Me3SiCN. The K+ salts are starting materials for the preparation of salts with organic cations, for example, [EMIm]+ (EMIm
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 Onium Alkylsulfonates
申请人:Ignatyev Nikolai (Mykola)
公开号:US20080221334A1
公开(公告)日:2008-09-11
The invention relates to a process for the preparation of onium alkylsulfonates by reaction of an onium halide or carboxylate with a symmetrically substituted dialkyl sulfite or with an asymmetrically substituted dialkyl sulfite at temperatures of 50 to 170° C.
PROCESS FOR THE PREPARATION OF ONIUM SALTS WITH ALKYL- OR ARYLSULFONATE ANIONS OR ALKYL- OR ARYLCARBOXYLATE ANIONS HAVING A LOW HALIDE CONTENT
申请人:Ignatyev Nikolai (Mykola)
公开号:US20090253905A1
公开(公告)日:2009-10-08
The invention relates to a method for producing onium salts comprising alkyl anions or aryl sulfonate anions or alkyl carboxylate anions or acryl carboxylate anions by reacting an onium halide with an alkyl silyl ester or trialkyl silyl ester of an alkyl sulfonic acid or aryl sulfonic acid or an alkyl carboxylic acid or aryl carboxylic acid or the anhydrides thereof.
PROCESS FOR THE PREPARATION OF ONIUM SALTS WITH A TETRAFLUOROBORATE ANION HAVING A REDUCED HALIDE CONTENT
申请人:Ignatyev Nikolai (Mykola)
公开号:US20090253912A1
公开(公告)日:2009-10-08
The invention relates to a method for producing onium salts with tetrafluoroborate anion by reacting an onium halide with an oxonium tetrafluoroborate, sulfonium tetrafluoroborate, or triphenylcarbonium tetrafluoroborate.