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    • 1. 发明授权
    • Method of producing choline of a high purity
    • 生产高纯度胆碱的方法
    • US5618978A
    • 1997-04-08
    • US622082
    • 1996-03-26
    • Shunji HyodaYouichi HasegawaFumio Toda
    • Shunji HyodaYouichi HasegawaFumio Toda
    • C07C213/08C07C213/10C07C215/40C25B3/00C07C209/84
    • C07C213/10C25B3/00
    • A method of producing a choline having a high purity without containing by-products by using a molecule-inclusion complex of the choline as a starting material. A choline inclusion complex without containing by-products is obtained by reacting an aqueous solution of the choline containing, as by-products, those cholines to which are added ethylene oxides with host molecules such as of 1,1'-bis-.beta.-naphthol, and is further reacted with a carbon dioxide gas in order to obtain an aqueous solution of a choline carbonate and/or a choline bicarbonate of a high purity, which is then subjected to the electrolysis using a cation-exchange membrane as a diaphragm, in order to obtain an aqueous solution of the choline of a high purity without containing by-products. The choline that is obtained is a strongly basic compound having a high purity and is very useful as a photoresist-developing solution.
    • 通过使用胆碱的分子包合配合物作为起始原料,生产具有高纯度而不含有副产物的胆碱的方法。 不含有副产物的胆碱包合络合物通过将含有作为副产物的胆碱的水溶液与添加有环氧乙烷的主链分子例如1,1'-双-β-萘酚 并进一步与二氧化碳气体反应,以获得高纯度的碳酸胆碱和/或胆碱碳酸氢盐的水溶液,然后使用阳离子交换膜作为隔膜进行电解, 以获得高纯度的胆碱水溶液而不含副产物。 获得的胆碱是具有高纯度的强碱性化合物,并且作为光致抗蚀剂显影溶液是非常有用的。
    • 3. 发明授权
    • Process for producing alicyclic hydrazine derivatives, tetra-hydropyridazine and hexahydropyridazine
    • 制备脂环肼衍生物,四氢哒嗪和六氢哒嗪的方法
    • US06194577B1
    • 2001-02-27
    • US09337607
    • 1999-06-21
    • Youichi HasegawaShunji HyodaHiroyuki FujitaHirotoshi SawadaYasuo Oki
    • Youichi HasegawaShunji HyodaHiroyuki FujitaHirotoshi SawadaYasuo Oki
    • C07D23704
    • C07D295/30C07D237/04C07D487/04
    • The present invention relates to a process for producing alicyclic hydrazine derivatives, tetrahydropyridazine and hexahydropyridazine which are useful as intermediate starting materials such as medicines and agricultural chemicals. Especially, the present invention provides; a process for producing an alicyclic hydrazine derivative or its hydrohalogenic acid salt, which comprises reacting a hydrazine hydrohalogenic acid salt with a doil compound or an alicyclic ether compound in the presence of an excessive inorganic acid existing in a free form or in the form of an acid addition salt; a process for producing tetrahydropyridazine from 1-aminopyrrolidine, which comprises oxidizing 1-aminopyrrolidine with an oxidizing agent to form tetrahydropyridazine; and a process for producing hexahydropyridazine, which comprises oxidizing 1-aminopyrrolidine with an oxidizing agent, synthesizing tetrahydropyridazine, and thereafter, hydrogenating the tetrahydropyridazine in the presence of a base.
    • 本发明涉及可用作中间起始物质如药物和农药的脂环肼衍生物,四氢哒嗪和六氢哒嗪的生产方法。 特别地,本发明提供了一种制备脂环肼衍生物或其氢卤酸盐的方法,该方法包括在存在无机酸的过量无机酸的存在下,使肼氢卤酸盐与多西尔化合物或脂环族醚化合物反应 形式或以酸加成盐的形式;由1-氨基吡咯烷生产四氢哒嗪的方法,其包括用氧化剂氧化1-氨基吡咯烷以形成四氢哒嗪; 以及制备六氢哒嗪的方法,其包括用氧化剂氧化1-氨基吡咯烷,合成四氢哒嗪,然后在碱的存在下氢化四氢哒嗪。