PROCESS FOR PREPARING AND PURIFYING 3-AMINOPROPANOL
    3.
    发明申请
    PROCESS FOR PREPARING AND PURIFYING 3-AMINOPROPANOL 审中-公开
    制备和纯化3-氨基丙醇的方法

    公开(公告)号:US20120149903A1

    公开(公告)日:2012-06-14

    申请号:US13325594

    申请日:2011-12-14

    摘要: The present invention relates to a process for purifying a reaction output which comprises 3-aminopropanol and is obtained in the reaction of ethylene cyanohydrin with hydrogen in the presence of ammonia, which comprises distilling the reaction output comprising 3-aminopropanol in two or more stages, the ammonia content of the reaction output comprising 3-aminopropanol before introduction into the first distillation stage being 1% by weight or less and the temperature in the distillation stages being not more than 135° C.The invention further relates to a process for preparing 3-aminopropanol by reacting ethylene cyanohydrin with hydrogen in the presence of ammonia, which comprises performing the purification of the reaction output comprising 3-aminopropanol in accordance with the invention. The present invention further provides a process for preparing 3-aminopropanol derivatives, especially panthenol, acambrosate, mefenorex, domperidon, ifosamid or urapidil, from 3-amino-propanol prepared in accordance with the invention.

    摘要翻译: 本发明涉及一种纯化反应产物的方法,该方法包括3-氨基丙醇,并且在氨存在下在乙烯氰醇与氢气的反应中获得,其包括在两个或多个阶段蒸馏出包含3-氨基丙醇的反应产物, 在引入第一蒸馏阶段之前,包含3-氨基丙醇的反应产物的氨含量为1重量%以下,蒸馏阶段的温度不超过135℃。本发明还涉及制备3 - 氨基丙醇,其通过在氨的存在下使乙烯氰醇与氢气反应,其包括进行根据本发明的包含3-氨基丙醇的反应产物的纯化。 本发明还提供了一种由根据本发明制备的3-氨基丙醇制备3-氨基丙醇衍生物,特别是由3-氨基丙醇制备的泛醇,丙酸酯,甲氟醚,多西他顿,异头amid苷或乌拉地尔的方法。