Process for producing 5-aminotetrazole
    2.
    发明授权
    Process for producing 5-aminotetrazole 失效
    5-氨基四唑的制备方法

    公开(公告)号:US5594146A

    公开(公告)日:1997-01-14

    申请号:US392308

    申请日:1995-02-22

    IPC分类号: C07D257/06

    CPC分类号: C07D257/06

    摘要: A process for producing 5-aminotetrazole comprising the steps of: reacting cyanamide with hydrazine in a solvent to form a salt of aminoguanidine; adding thereto an acid and then a nitrite to form a salt of diazoguanidine; and cyclizing the salt of diazoguanidine, upon heating, to thereby produce the 5-aminotetrazole, without isolating the intermediate product and also a process for producing 5-aminotetrazole or a metal salt thereof in the form of powder by spray drying.

    摘要翻译: 一种生产5-氨基四唑的方法,包括以下步骤:使氰胺与肼在溶剂中反应形成氨基胍的盐; 加入酸,然后加入亚硝酸盐,形成重氮胍的盐; 并在加热时使重氮胍的盐环化,从而产生5-氨基四唑,而不分离中间产物,还有通过喷雾干燥制备粉末形式的5-氨基四唑或其金属盐的方法。

    Process for producing 2-cyanoimino-1,3-thiazolidine
    3.
    发明授权
    Process for producing 2-cyanoimino-1,3-thiazolidine 失效
    2-氰基亚氨基-1,3-噻唑烷的制备方法

    公开(公告)号:US06858737B2

    公开(公告)日:2005-02-22

    申请号:US10470087

    申请日:2002-10-24

    IPC分类号: C07D277/18 C07D277/38

    CPC分类号: C07D277/18

    摘要: A method of obtaining a high purity 2-cyanoimino-1,3-thiazolidine, at a high yield, by cyclization reaction of dimethyl N-cyanoiminodithiocarbonate ester with 2-aminoethane thiol or the salt thereof in the presence of an alkali metal hydroxide is disclosed.

    摘要翻译: 公开了在碱金属氢氧化物存在下,通过N-二氰基亚氨基二硫代碳酸二甲酯与2-氨基乙硫醇或其盐的环化反应以高产率获得高纯度2-氰基亚氨基-1,3-噻唑烷的方法 。

    Method of production of 2-cyanoimino-1, 3-thiazolidine
    4.
    发明授权
    Method of production of 2-cyanoimino-1, 3-thiazolidine 失效
    2-氰基亚氨基-1,3-噻唑烷的制备方法

    公开(公告)号:US06750351B2

    公开(公告)日:2004-06-15

    申请号:US10297812

    申请日:2002-12-10

    IPC分类号: C07D27718

    CPC分类号: C07D277/18

    摘要: A method for producing high purity 2-cyanoimino-1,3-thiazolidine comprising the steps of: reacting an alkali metal cyanide compound, an alkali metal hydroxide, a lower alcohol and chlorine in an aqueous solution to form an carboimidic acid ester solution, then adding an organic solvent thereto, followed by adding a cyanamide solution to form an N-cyanocarbonimidic acid ester, and further extracting the resultant ester with an organic solvent extracting solution, followed by washing with an aqueous solution of a reducing agent solution to obtain a high purity, stable N-cyanocarbonimidic acid ester as a first step; and reacting the N-cyanocarbonimidic acid ester obtained in the first step with 2-aminoethanethiol to be cyclicized as a second step to thereby obtain a 2-cyanoimino-1,3-thiazolidine.

    摘要翻译: 一种生产高纯度2-氰基亚氨基-1,3-噻唑烷的方法,包括以下步骤:在水溶液中使碱金属氰化物化合物,碱金属氢氧化物,低级醇和氯反应形成碳酰亚胺酸酯溶液,然后 向其中加入有机溶剂,然后加入氰胺溶液以形成N-氰基碳酰亚胺酸酯,并用有机溶剂萃取溶液进一步萃取所得的酯,然后用还原剂溶液的水溶液洗涤,得到高 纯度稳定的N-氰基羰基亚氨酸酯作为第一步; 将第一步得到的N-氰基羰基亚胺酸酯与2-氨基乙硫醇反应,作为第二步,得到2-氰基亚氨基-1,3-噻唑烷。

    O-isopropyl isourea salt and production method thereof
    5.
    发明授权
    O-isopropyl isourea salt and production method thereof 失效
    O-异丙基异脲盐及其制备方法

    公开(公告)号:US07105694B2

    公开(公告)日:2006-09-12

    申请号:US10509626

    申请日:2004-01-21

    IPC分类号: C07C273/00 C07C275/00

    CPC分类号: C07C275/70

    摘要: O-isopropyl-isourea hydrogen sulfate or sulfate represented by the formula (I): wherein X represents HSO4 or ½ SO4 and the production method thereof, wherein O-isopropyl-isourea hydrogen sulfate is obtained by reacting cyanamide and isopropyl alcohol in the presence of sulfuric acid and is neutralized with an alkali metal hydroxide to produce O-isopropyl-isourea sulfate.

    摘要翻译: 由式(I)表示的O-异丙基 - 异硫脲硫酸盐或硫酸盐及其制备方法,其中X表示HSO 4或1/2 SO 4,其中O-异丙基 异硫脲硫酸盐是通过氰氨和异丙醇在硫酸存在下反应得到的,并用碱金属氢氧化物中和得到O-异丙基 - 异脲硫酸盐。

    Process for producing tetraalkoxypropane and derivative thereof
    7.
    发明申请
    Process for producing tetraalkoxypropane and derivative thereof 审中-公开
    制备四烷氧基丙烷的方法及其衍生物

    公开(公告)号:US20060183948A1

    公开(公告)日:2006-08-17

    申请号:US10549925

    申请日:2004-03-23

    IPC分类号: C07C41/06

    摘要: In view of the fact that a methyl vinyl ether, which is useful as a starting material for the synthesis of tetraalkoxypropane useful as a skeleton-forming agent having a high reactivity usable as a starting material, etc. for a pharmaceutical and agrochemical intermediates such as a pyrazole derivative or pyrimidine derivative, particularly 1,1,3,3-tetramethoxypropane, is in a gaseous state and difficult to use for industrial production, tetraalkoxypropane useful as a skeleton-forming agent for a pharmaceutical and agrochemical intermediate such as a pyrazole derivative or pyrimidine derivative is easily produced on an industrial scale by using the industrially useable propoxyvinyl ether, as a starting material, without using a gaseous state methyl vinyl ether.

    摘要翻译: 鉴于可用作合成可用作起始材料具有高反应性的骨架形成剂的四烷氧基丙烷的起始原料的甲基乙烯基醚等用于药物和农药中间体如 吡唑衍生物或嘧啶衍生物,特别是1,1,3,3-四甲氧基丙烷,处于气态,难以用于工业生产,可用作药物和农药中间体如吡唑衍生物的骨架形成剂的四烷氧基丙烷 或嘧啶衍生物在工业规模上通过使用工业上可用的丙氧基乙烯基醚作为原料容易地生产,而不使用气态甲基乙烯基醚。

    Divinyl-ether compound and manufacturing method therefor
    8.
    发明授权
    Divinyl-ether compound and manufacturing method therefor 有权
    二乙烯基醚化合物及其制备方法

    公开(公告)号:US09133090B2

    公开(公告)日:2015-09-15

    申请号:US13824072

    申请日:2011-10-06

    IPC分类号: C07C43/162 C07C41/08

    摘要: A novel divinyl ether compound having the formula (I): wherein A indicates a single bond or a double bond which is low in odor, low in volatility, and low in skin irritability, which have low toxicities, which are useful as a starting material for a polymer composition having excellent curability, adhesiveness and transmission in the ultraviolet light region, and further, having a special reactivity alone or with other compounds, and a process for producing the same.

    摘要翻译: 一种具有式(I)的新型二乙烯基醚化合物:其中A表示单键或双键,其具有低毒性,低毒性,低挥发性,低毒性,可用作原料 对于在紫外线区域具有优异的固化性,粘附性和透射性,并且还具有单独或与其它化合物具有特殊反应性的聚合物组合物及其制备方法。