PROCESS TO PRODUCE FLUORINATED BETAINES
    3.
    发明申请
    PROCESS TO PRODUCE FLUORINATED BETAINES 审中-公开
    生产氟化试剂的方法

    公开(公告)号:WO2014014810A1

    公开(公告)日:2014-01-23

    申请号:PCT/US2013/050465

    申请日:2013-07-15

    IPC分类号: A62D1/00 C07C311/05 C11D1/92

    摘要: A process to prepare fluorinated sulfobetaine compounds of formula (I), wherein R f is C 2 to C 10 fluoroalkyl optionally interrupted by one or more of O, CH 2 , CHF, or combinations thereof; R 1 is C 1 to C 10 alkylene; R 2 is C 1 to C 6 alkylene or a chemical bond; R 3 is H or CH 3 ; R 4 is C 1 to C 6 alkylene containing at least one hydroxyl group; R 5 is H or CH 3 ; and R 6 is H or CH 3 ; comprising contacting a fluorinated sulfonamide amine of formula (II), with an aliphatic chlorosulfonic acid or salt thereof of formula (III), in the presence of water and at least one alkylene glycol, and optionally at least one alkyl carbonate, said fluorinated sulfobetaine having reduced free chloride content and reduced flammability without the need for additional purification steps.

    摘要翻译: 制备式(I)的氟化磺基甜菜碱化合物的方法,其中R f是任选被O,CH 2,CHF或其组合中的一种或多种中断的C 2至C 10氟烷基; R1为C1〜C10亚烷基; R2是C1-C6亚烷基或化学键; R3是H或CH3; R4是含有至少一个羟基的C1-C6亚烷基; R5是H或CH3; R6为H或CH3; 包括使式(II)的氟化磺酰胺与式(III)的脂族氯磺酸或其盐在水和至少一种亚烷基二醇和任选的至少一种烷基碳酸酯的存在下接触,所述氟代磺基甜菜碱具有 减少游离氯含量和降低可燃性,而不需要额外的纯化步骤。