| 摘要 |
PURPOSE:To obtain the titled compound inexpensively in high yield, by reacting at least one of maleic anhydride, maleinamic acid, and ammonium maleinamate with ammonia water in the presence of ammonium chloride. CONSTITUTION:At least one selected from maleic anhydride, maleinamic acid, and ammonium maleinamate is reacted with ammonia water in the presence of ammonium chloride at 70-150 deg.C for 30min-10hr, preferably at 90-130 deg.C for 1- 5hr, to give the desired substance. An amount of maleic acid as the starting substance used is 0.1-5mol based on 1l ammonia water, and an amount of ammonium chloride added is 0.1-40mol based on 1mol maleic acid, and the reaction is carried out. USE:Useful as a raw material for surface active agent, a raw material for flame- retardant synthetic resin, addition agent for rubber, etc.
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