申请人:Osborg, Hans
公开号:EP0134259A1
公开(公告)日:1985-03-20
Anhydrous hydrazine and hydrocarbyl-substituted hydrazines are efficiently prepared according to a three-step procedure, comprising a first step wherein ammonia, a primary or secondary amine, an alkali metal amide, an alkaline earth metal amide, a hydrocarbyl-substituted alkali metal amide or a hydrocarbyl-substituted alkaline earth metal amide is reacted with a chlorinating agent to produce the corresponding chloramine without co-production of an amine hydrochloride salt; a second step wherein the chloramine is reacted with a tertiary amine to produce a tertiary hydrazinium chloride; and a final step wherein the tertiary hydrazinium chloride is reacted with an alkali metal amide or an alkaline earth metal amide under anhydrous conditions to produce the desired product.
无水肼和烃基取代的肼根据三步法有效制备,包括第一步,氨、伯胺或仲胺、碱金属酰胺、碱土金属酰胺、烃基取代的碱金属酰胺或烃基取代的碱土金属酰胺与氯化剂反应生成相应的氯胺,而不同时生成胺盐酸盐;第二步:氯胺与叔胺反应,生成叔联肼氯化物;最后一步:叔联肼氯化物在无水条件下与碱金属酰胺或碱土金属酰胺反应,生成所需的产品。