申请人:KS LABORATORIES CO., LTD.
公开号:US20150336906A1
公开(公告)日:2015-11-26
The present invention relates to a method for preparing amicarbazone by using amino-triazolinone, which is an intermediate compound, and relates to a method for preparing amicarbazone, comprising the steps of: obtaining hydrazine carboxylic acid represented by 5 chemical formula (V) by reacting acylhydrazide represented by chemical formula (II) and a carbamating agent represented by chemical formula (III) or (IV); reacting the obtained hydrazine carboxylic acid represented by chemical formula (V) and hydrazine hydrate in the presence of a base catalyst; and reacting the obtained compound represented by chemical formula (I) 10 and an alkyl isocyanate represented by chemical formula (IV) in the presence of a base catalyst. Amino-triazolinone and amicarbazone would be stably produced by the present invention without safety gear and safety facilities for the leakage of phosgene, which has been conventionally used as a reactant.
本发明涉及一种利用
氨基
三唑酮作为中间化合物制备
氨基
咪唑磺胺的方法,并涉及一种制备
氨基
咪唑磺胺的方法,包括以下步骤:通过将
化学式(II)表示的酰基脒与
化学式(III)或(IV)表示的羰基化剂反应获得
化学式(V)表示的
肼羧酸;在碱性催化剂存在下,将获得的
化学式(V)表示的
肼羧酸与
肼水合物反应;在碱性催化剂存在下,将获得的
化学式(I)表示的化合物与
化学式(IV)表示的烷基
异氰酸酯反应。本发明通过使用
氨基
三唑酮和
氨基
咪唑磺胺,无需传统上用作反应物的
光气的安全设备和安全设施,可以稳定地生产
氨基
三唑酮和
氨基
咪唑磺胺。