公开(公告)号：US07122676B2

公开(公告)日：2006-10-17

申请号：US09813826

申请日：2001-03-22

申请人： Shunji Hyoda ,  Masaharu Kita ,  Hirotoshi Sawada ,  Shuichi Nemugaki ,  Takahiro Ueta ,  Kohki Satoh

发明人： Shunji Hyoda ,  Masaharu Kita ,  Hirotoshi Sawada ,  Shuichi Nemugaki ,  Takahiro Ueta ,  Kohki Satoh

IPC分类号： C07D257/04 ,  B01J19/00

CPC分类号： C07D257/04 ,  C07C257/22

摘要： A process for preparing 5,5′-bi-1H-tetrazolediammonium salts (BHT.2NH3) maintaining a high yield through oxaldiimidic acid dihydrazide (OAH) from the starting materials which are cheaply available and are easy to handle. The 5,5′-bi-1H-tetrazolediammonium salts (BHT.2NH3) are prepared by dissolving the oxaldiimidic acid dihydrazide (OAH) obtained by the reaction of hydrated hydrazide with dicyan in an aqueous solution of a weakly acidic compound such as acetic acid, dropwisely adding an aqueous solution of sodium nitrite thereto to form an azide thereof and to effect the cyclization reaction by heating, adding an aqueous solution of sodium hydroxide to the reaction product to convert it into a 5,5′-bi-1H-tetrazoledisodium salt (BHT.2Na), reacting it with an aqueous solution of ammonium chloride, and recovering the formed ammonium salt as sparingly soluble crystals.

摘要翻译： 通过草本二酰亚胺二酰肼（OAH）从起始原料中制备的5,5'-双-1,5-四唑基铵盐（BHT.2NH 3 N 3）的方法，该方法是廉价可得的并且容易 处理。 通过将通过水合酰肼与二氰反应得到的草二酰亚胺二酰肼（OAH）溶解在水溶液中，制备5,5'-双-1H-四唑基铵盐（BHT.2NH 3 N 3） 弱酸性化合物如乙酸，向其中逐滴加入亚硝酸钠水溶液形成叠氮化物，通过加热进行环化反应，向反应产物中加入氢氧化钠水溶液，将其转化为5， 5'-双-1,5-四唑基二钠盐（BHT.2Na），与氯化铵水溶液反应，回收形成的铵盐作为微溶晶体。

公开(公告)号：US6156906A

公开(公告)日：2000-12-05

申请号：US374949

申请日：1999-08-16

申请人： Shunji Hyoda ,  Masaharu Kita ,  Hirotoshi Sawada ,  Shuichi Nemugaki ,  Takahiro Ueta ,  Kohki Satoh ,  Sumio Otsuka ,  Yoshitaka Miyawaki ,  Hiroshi Taniguchi

发明人： Shunji Hyoda ,  Masaharu Kita ,  Hirotoshi Sawada ,  Shuichi Nemugaki ,  Takahiro Ueta ,  Kohki Satoh ,  Sumio Otsuka ,  Yoshitaka Miyawaki ,  Hiroshi Taniguchi

IPC分类号： C07D257/04 ,  C07D403/04

CPC分类号： C07D257/04

摘要： A process for the preparation of a 5,5'-bi-1H-tetrazole diammonium salt by dropwisely adding the aqueous hydrogen peroxide to which a small amount of weakly acidic substance has been added, to a starting aqueous solution containing hydrogen cyanide or sodium cyanide or potassium cyanide, sodium azide and a catalytic amount of copper sulfate preferably at a low temperature to maintain the pH of the reaction solution over a range of from 5 to 6, heating the reaction solution to effect the oxidation and cyclization reaction, reacting the reaction product with ammonium chloride or an aqueous solution thereof, and recovering the formed ammonium salt in the form of sparingly soluble crystals. The desired product is obtained in a high yield and in a high purity from the starting materials which are cheaply available and are easy to handle through a decreased number of steps, i.e., through a one-pot reaction without requiring cumbersome after-treatment.

摘要翻译： 通过向含有氰化氢或氰化钠的起始水溶液中滴加加入少量弱酸性物质的过氧化氢水溶液来制备5,5'-双-1H-四唑二铵盐的方法 或氰化钾，叠氮化钠和催化量的硫酸铜，优选在低温下将反应溶液的pH维持在5至6的范围内，加热反应溶液进行氧化和环化反应，使反应 与氯化铵或其水溶液反应，并回收形成的微溶晶体形式的铵盐。 从廉价可得的起始原料以高产率和高纯度获得所需的产物，并且通过减少数量的步骤，即通过一锅反应而不需要繁琐的后处理容易处理。

公开(公告)号：US6040453A

公开(公告)日：2000-03-21

申请号：US374950

申请日：1999-08-16

申请人： Shunji Hyoda ,  Masaharu Kita ,  Hirotoshi Sawada ,  Shuichi Nemugaki ,  Sumio Otsuka ,  Yoshitaka Miyawaki ,  Takashi Ogawa ,  Yuhki Kubo

发明人： Shunji Hyoda ,  Masaharu Kita ,  Hirotoshi Sawada ,  Shuichi Nemugaki ,  Sumio Otsuka ,  Yoshitaka Miyawaki ,  Takashi Ogawa ,  Yuhki Kubo

IPC分类号： C07D257/04 ,  C07D403/04

CPC分类号： C07D257/04

摘要： A process for the preparation of a 5,5'-bi-1H-tetrazole diammonium salt by using dicyan, sodium azide, ammonium chloride and water as a reaction medium. This process is industrially advantageous since the 5,5'-bi-1H-tetrazole diammonium salt is synthesized and, then, the precipitated crystals thereof are simply isolated by filtration to obtain the 5,5'-bi-1H-tetrazole diammonium salt maintaining an yield which is not lower than 90%. The 5,5'-bi-1H-tetrazole diammonium salt is a gas-generating agent for air bags, which is lowly toxic and is easy to handle.

摘要翻译： 通过使用二氰，叠氮化钠，氯化铵和水作为反应介质制备5,5'-双-1,5-四唑二铵盐的方法。 该方法在工业上是有利的，因为合成了5,5'-双-1,5-四唑二铵盐，然后通过过滤简单地分离其沉淀的晶体，得到5,5'-双-1,5-四唑二铵盐保持 产率不低于90％。 5,5'-双-1,5-四唑二铵盐是气囊的气体发生剂，其毒性低，易于处理。

公开(公告)号：US5977360A

公开(公告)日：1999-11-02

申请号：US998168

申请日：1997-12-24

申请人： Youichi Hasegawa ,  Shunji Hyoda ,  Hiroyuki Fujita ,  Hirotoshi Sawada ,  Yasuo Oki

发明人： Youichi Hasegawa ,  Shunji Hyoda ,  Hiroyuki Fujita ,  Hirotoshi Sawada ,  Yasuo Oki

IPC分类号： C07D237/04 ,  C07D295/30 ,  C07D487/04 ,  C07D237/02 ,  C07D241/02

CPC分类号： C07D295/30 ,  C07D237/04 ,  C07D487/04

摘要： 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 diol 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; anda 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.

摘要翻译： 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： 一种生产脂环肼衍生物或其氢卤酸盐的方法，其包括在存在过量无机酸的情况下使肼氢卤酸盐与二醇化合物或脂环族醚化合物反应，或者以 酸加成盐; 由1-氨基吡咯烷生产四氢哒嗪的方法，其中包括用氧化剂氧化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。

公开(公告)号：US06194577B1

公开(公告)日：2001-02-27

申请号：US09337607

申请日：1999-06-21

申请人： Youichi Hasegawa ,  Shunji Hyoda ,  Hiroyuki Fujita ,  Hirotoshi Sawada ,  Yasuo Oki

发明人： Youichi Hasegawa ,  Shunji Hyoda ,  Hiroyuki Fujita ,  Hirotoshi Sawada ,  Yasuo Oki

IPC分类号： C07D23704

CPC分类号： C07D295/30 ,  C07D237/04 ,  C07D487/04

摘要： 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.

摘要翻译： 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。