A process for preparing p.chlorophenoxyacetyl-piperonylpiperazine ("Fipexide"), consisting of reacting, p.chlorophenoxyacetyl chloride directly with piperonyipiperazine in the presence of an inert reaction solvent, in particular chloroform, but in the absence of substances acting as acid acceptors.
The p.chlorophenoxyacetyl chloride can be formed directly in situ, from p.chlorophenoxyacetic acid and thionyl chloride.
一种制备对
氯苯氧乙酰基
哌嗪("Fipexide")的工艺,包括在有惰性反应溶剂,特别是
氯仿存在的情况下,但在没有作为酸接受体的物质存在的情况下,使对
氯苯氧乙酰氯直接与
哌嗪反应。
对
氯苯氧基乙酰氯可以由对
氯苯氧基
乙酸和亚
硫酰氯直接在原位生成。