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    • 89. 发明授权
    • O,S-디메틸N-아세틸포스포르아미도티오에이트의정제방법
    • O,S-디메틸N-아세틸포스포르아미도티오에이트의정제방법
    • KR100371241B1
    • 2003-03-26
    • KR1019950031144
    • 1995-09-21
    • 스미또모 가가꾸 가부시키가이샤
    • 사키토요지시라하타마모루기요시마유지로미나미사카가즈야이와타아쓰카즈
    • C07F9/24
    • C07F9/025C07F9/2487
    • A method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by subjecting a crude crystal of O,S-dimethyl N-acetylphosphoramidothioate to recrystallization by using a two-phase solvent system comprising water and an organic solvent which is an aromatic hydrocarbon, an aliphatic carboxylic acid ester or aliphatic ketone, wherein the amount of water is 0.1 to 2 parts by weight and the amount of the organic solvent is 1 to 20 parts by weight to 1 part by weight of the crude O,S-dimethyl N-acetylphosphoramidothioate. A further method for purifying O,S-dimethyl N-acetylphosphoramidothioate, which is characterized by extracting O,S-dimethyl N-acetylphosphoramidothioate from an aqueous solution of crude O,S-dimethyl N-acetylphosphoramidothioate with an organic solvent which is a carbonate ester, an aliphatic carboxylic acid ester, an aliphatic ketone, an aliphatic alcohol or a mixture of two or more thereof, wherein the solubility of water in the organic solvent is in a range of from 1 to 20% by weight, and crystallizing O,S-dimethyl N-acetylphosphoramidothioate from the resulting organic phase.
    • 一种O,S-二甲基N-乙酰基硫代磷酰胺酯的纯化方法,其特征在于,使用含有水和作为芳香族的有机溶剂的二相溶剂体系对O,S-二甲基N-乙酰基硫代磷酰胺硫酸盐的粗结晶进行重结晶 烃,脂族羧酸酯或脂族酮,其中水的量为0.1至2重量份,有机溶剂的量为1至20重量份,相对于1重量份的粗制O,S-二甲基 N-乙酰基。 用于纯化O,S-二甲基N-乙酰基硫代磷酰胺酯的另一种方法,其特征在于从粗品O,S-二甲基N-乙酰基硫代磷酰胺酯与作为碳酸酯的有机溶剂的水溶液中萃取O,S-二甲基N-乙酰基硫代磷酰胺酯 ,脂族羧酸酯,脂族酮,脂族醇或其两种或更多种的混合物,其中水在有机溶剂中的溶解度为1至20重量%,并使O,S N-二乙基N-乙酰基磷酰胺硫代酸酯。