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。