Preparation of azine专利检索-含有羧基的化合物羧基的双键氧原子被双键氮原子取代该氮原子不再连接氧原子例如亚氨醚脒专利检索查询-专利查询网

Preparation of azine
申请号	JP11916484	申请日	1984-06-12	公开(公告)号	JPS6158A	公开(公告)日	1986-01-06
申请人	Nippon Carbide Ind Co Ltd;			发明人	KOSHI MINEICHI; FUKAO OSAMU; SAITOU TAISUKE; SAKAN TATSUO; NAKAHARA SEIICHI;
摘要	PURPOSE: To obtain azine at high feed rate and at a high reaction temperature, by using CA hypochlorite as a hypochlorite, feeding it to a reaction system at a rate in a specific range, reacting the hypochlorite with ammonia in the presence of a carbonyl compound. CONSTITUTION: Calcium hypochlorite is used as a hypochlorite, fed as an aqueous solution having 5W25wt%, preferably 5W15wt% effective chlorine concentration, at a rate of 0.001W0.2mol/mol minute, especially 0.002W0.008mol/mol minute effective amount based on 1mol total amounts of a carbonyl compound (acetone or methyl ethyl ketone) and ammonia to a reaction system, and the hypochlorite is reacted with ammonia in a molar ratio condition of 2W5mol carbonyl compound and 5W35mol ammonia based on 1mol effective chlorine concentration of the hypochlorite at atmospheric pressure or at pressure higher than it at 25W60°C, especially at 35W50°C, to give azine useful as an intermediate for preparing hydrazine. COPYRIGHT: (C)1986,JPO&Japio
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