申请人:Ciba-Geigy Corporation
公开号:US04327033A1
公开(公告)日:1982-04-27
A process is provided for the manufacture of methomyl oxime comprising the steps of chlorinating acetaldoxime dissolved in N-methylpyrrolidone at a temperature range of -10.degree. C. to 0.degree. C. to form a N-methylpyrrolidone solution of acethydroxamoyl chloride; thioesterifying the acethydroxyamoyl chloride in said solution at a temperature range of about 0.degree. C. to 10.degree. C. at pH in the range 6-7.
提供一种制备甲氧基甲酰肼的方法,包括以下步骤:在-10摄氏度至0摄氏度的温度范围内,氯化溶解在N-甲基吡咯烷酮中的乙醛肼,形成乙醛羟肼氯化物的N-甲基吡咯烷酮溶液;在约0摄氏度至10摄氏度的温度范围内,在pH值为6-7的范围内,将乙醛羟肼氯化物在所述溶液中进行硫酯化。