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    • 42. 发明申请
    • CHLORINATION OF CARBOHYDRATES AND CARBOHYDRATE DERIVATIVES
    • 碳酸氢盐和碳酸氢盐衍生物的氯化
    • US20140187768A1
    • 2014-07-03
    • US14198182
    • 2014-03-05
    • Lexington Pharmaceuticals Laboratories, LLC
    • William Randal ERICKSONStephen Craig FIELDS
    • C07H1/00C07H5/02
    • C07H1/00C07H5/02C07H13/04
    • Disclosed is a method for chlorinating a carbohydrate or a derivative thereof to produce a polychlorinated carbohydrate or a derivative thereof, such as sucralose, the method involves (i) reacting the carbohydrate or derivative thereof with a chlorinating agent to obtain a reaction mixture comprising said polychlorinated carbohydrate or derivative thereof and at least one under-chlorinated carbohydrate or derivative thereof, (ii) returning the at least one under-chlorinated carbohydrate or derivative thereof to a chlorinating step and further chlorinating the at least one under-chlorinated carbohydrate or derivative thereof to obtain the desired polychlorinated carbohydrate or derivative thereof; and (iii) optionally repeating steps (i) and (ii) “n” times where n≧1. The polychlorinated carbohydrate or a derivative thereof is obtained in high yields.
    • 公开了一种用于氯化碳水化合物或其衍生物以产生多氯代碳水化合物或其衍生物如三氯蔗糖的方法,该方法包括(i)使碳水化合物或其衍生物与氯化剂反应以获得包含所述多氯代 碳水化合物或其衍生物和至少一种氯化不足的碳水化合物或其衍生物,(ii)将至少一种下氯化碳水化合物或其衍生物返回到氯化步骤中,并进一步将至少一种下氯化碳水化合物或其衍生物氯化为 获得所需的多氯代碳水化合物或其衍生物; 和(iii)任选地重复步骤(i)和(ii)n≥1的“n”倍。 以高产率获得多氯代碳水化合物或其衍生物。