Method of preparing granular N-alkyl-ammoniumacetonitrile salts
    1.
    发明授权
    Method of preparing granular N-alkyl-ammoniumacetonitrile salts 失效
    颗粒状N-烷基 - 铵乙腈盐的制备方法

    公开(公告)号:US06593473B1

    公开(公告)日:2003-07-15

    申请号:US09926216

    申请日:2001-09-25

    IPC分类号: C07C25330

    CPC分类号: C07D295/15

    摘要: Improved process for the preparation of granular N-alkylammoniumacetonitrile salts I R2R3N+R1—CR4R5—CN Y−  (I) where R1 to R5 are hydrogen or organic radicals, and Y− is a sulfate or hydrogensulfate anion, from an aqueous solution of the compound II R2R3N+R1—CR4R5—CN R6O—SO2—O−  (II) where R6 is C1- to C4-alkyl, which comprises evaporating this aqueous solution at a temperature of from 80° C. to 250° C. and a pressure of from 10 mbar to 2 bar to give a melt, then allowing the melt to solidify, where, during or following the evaporation, customary carrier materials and/or auxiliaries can be added, and the resulting solidified compound I is converted into the desired granular form.

    摘要翻译: 制备其中R 1至C 4 - 烷基的化合物II的水溶液,其中R 1至R 5为氢或有机基团,Y-为硫酸根或硫酸氢根阴离子的颗粒状N-烷基铵乙腈盐I的改进方法,其包含 在80℃至250℃的温度和10毫巴至2巴的压力下蒸发该水溶液,得到熔体,然后使熔体固化,其中在蒸发期间或之后蒸发常规载体 可以加入材料和/或助剂,并将所得固化的化合物I转化为所需的颗粒形式。