Production process of fluorinated benzonitrile
    1.
    发明授权
    Production process of fluorinated benzonitrile 失效
    氟化苄腈的生产工艺

    公开(公告)号:US07569718B2

    公开(公告)日:2009-08-04

    申请号:US10513370

    申请日:2003-07-23

    IPC分类号: C07C255/49

    CPC分类号: C07C253/30 C07C255/50

    摘要: The invention enables reduction of catalyst in producing tetrafluorobenzonitrile by decyanation of one cyano group of tetrafluorodicyanobenzene by using a synthetic zeolite, particularly Zeolite 3A, 4A or 5A, in the reaction. Therefore, the invention provides an industrially useful process capable of producing tetrafluorobenzonitrile, a useful agrochemical and drug intermediate, by hydrogenolysis of tetrafluorodicyanobenzene to decyanate one cyano group with the use of catalyst in small amounts.

    摘要翻译: 本发明可以通过在反应中使用合成沸石,特别是沸石3A,4A或5A脱卤一个氰基的四氟二氰基苯来制备四氟苄腈来制备催化剂。 因此,本发明提供了一种工业上有用的方法,其能够通过使用少量催化剂将四氟二氰基苯氢解成一个氰基,从而生产四氟苄腈,一种有用的农药和药物中间体。

    Production method for benzenedimethanol compound
    2.
    发明授权
    Production method for benzenedimethanol compound 失效
    苯二甲醇化合物的制备方法

    公开(公告)号:US06909023B2

    公开(公告)日:2005-06-21

    申请号:US10311801

    申请日:2001-07-03

    摘要: To provide a novel method for producing a fluorinated benzenedimethanol compound useful as a starting material or an intermediate in the production of agricultural or medicinal chemicals in an industrially advantageous manner.A method for producing a fluorinated benzenedimethanol compound according to the present invention comprises the steps of reducing the nitrile groups of a fluorinated benzenedinitrile compound to obtain a fluorinated xylylenediamine compound and then converting the aminomethyl groups of the fluorinated xylylenediamine compound into hydroxymethyl groups.

    摘要翻译: 提供以工业上有利的方式制造用作农药或药用化学品生产中的起始原料或中间体的氟化苯二甲醇化合物的新方法。 根据本发明的氟化苯二甲醇化合物的制造方法包括将氟化苯二腈化合物的腈基还原,得到氟化苯二甲胺化合物,然后将氟化苯二甲胺化合物的氨基甲基转化为羟甲基的工序。

    Method for preparing an N-phosphonomethylglycine
    4.
    发明授权
    Method for preparing an N-phosphonomethylglycine 失效
    N-膦酰基甲基甘氨酸的制备方法

    公开(公告)号:US5453537A

    公开(公告)日:1995-09-26

    申请号:US260959

    申请日:1994-06-16

    IPC分类号: C07F9/24 C07F9/38

    CPC分类号: C07F9/3813

    摘要: The invention is directed to a process for preparing N-phosphonomethylglycine comprising the steps of reacting an aminomethylphosphonic acid with a glyconitrile in the presence of an alkali metal hydroxide to form a product, and then hydrolyzing the product by adding an alkali metal hydroxide in an amount sufficient to neutralize the resulting carboxylic acid.

    摘要翻译: 本发明涉及一种制备N-膦酰基甲基甘氨酸的方法,包括以下步骤:在碱金属氢氧化物存在下使氨基甲基膦酸与甘氨腈反应形成产物,然后通过加入一定量的碱金属氢氧化物水解产物 足以中和所得羧酸。

    Granular polysaccharide polymer having phthalocyanine skeleton bonded thereto
    5.
    发明申请
    Granular polysaccharide polymer having phthalocyanine skeleton bonded thereto 审中-公开
    具有结合有酞菁骨架的颗粒状多糖聚合物

    公开(公告)号:US20070149719A1

    公开(公告)日:2007-06-28

    申请号:US10584150

    申请日:2004-12-22

    IPC分类号: C08F8/32

    摘要: This invention provides a granular polysaccharide polymer having phthalocyanine bonded thereto which is a crosslinked polymer comprising a phthalocyanine skeleton covalently bonded to a crosslinked granular porous chitosan. When this crosslinked polymer is used as an adsorbent, a polycyclic organic material present as a mixture in a solution can be selectively adsorbed, desorbed, or separated. The granular polysaccharide polymer having phthalocyanine bonded thereto is excellent not only in the ability to adsorb polycyclic organic materials, but in the ability to desorb the adsorbed polycyclic organic materials. Accordingly, the crosslinked polymer is particularly useful for selective adsorption, desorption/concentration, or separation of polycyclic organic materials, e.g., mutagens, present in a very small amount, for example, in environments, foods, table luxuries, biological samples and can be widely utilized for the qualitative determination, quantitative determination, or removal of mutagens.

    摘要翻译: 本发明提供了一种结合有酞菁的粒状多糖聚合物,其是包含与交联的颗粒状多孔壳聚糖共价键合的酞菁骨架的交联聚合物。 当该交联聚合物用作吸附剂时,可以选择性地吸附,解吸或分离作为溶液中的混合物存在的多环有机材料。 具有与其结合的酞菁的粒状多糖聚合物不仅具有吸附多环有机材料的能力,而且在吸附多环有机材料的解吸能力方面优异。 因此,交联聚合物特别可用于多环有机材料的选择性吸附,解吸/浓缩或分离,例如以非常少量存在的诱变剂,例如在环境,食品,餐具,生物样品中,并且可以是 广泛用于定性测定,定量测定或除去诱变剂。

    Method for isolating N-phosphonomethylglycine
    8.
    发明授权
    Method for isolating N-phosphonomethylglycine 失效
    N-膦酰基甲基甘氨酸的分离方法

    公开(公告)号:US5859289A

    公开(公告)日:1999-01-12

    申请号:US814830

    申请日:1997-03-11

    IPC分类号: A01N57/20 C07F9/38

    CPC分类号: A01N57/20 C07F9/3813

    摘要: The present invention provides a method for isolating N-phosphonomethylglycine which comprises adding an acid to precipitate salts from an aqueous solution of an alkali metal salt and/or an alkaline earth metal salt of N-phosphonomethylglycine solution to neutralize and adjust the same to a pH of 2.5 or higher, removing the precipitated salts, and adjusting the pH to 2.5 or lower to crystallize N-phosphonomethylglycine. N-phosphonomethylglycine is thus isolated and purified in high purity and good yield.

    摘要翻译: 本发明提供了一种分离N-膦酰基甲基甘氨酸的方法,该方法包括加入酸以从N-膦酰基甲基甘氨酸溶液的碱金属盐和/或碱土金属盐的水溶液中沉淀出盐,以将其调节至pH 2.5或更高,去除沉淀的盐,并将pH调节至2.5以下以结晶N-膦酰基甲基甘氨酸。 因此N-膦酰基甲基甘氨酸以高纯度和良好的产率分离和纯化。

    Method for producing N-phosphonomethylglycine
    9.
    发明授权
    Method for producing N-phosphonomethylglycine 失效
    N-膦酰基甲基甘氨酸的制备方法

    公开(公告)号:US5750774A

    公开(公告)日:1998-05-12

    申请号:US814827

    申请日:1997-03-11

    IPC分类号: C07F9/38

    CPC分类号: C07F9/3813

    摘要: The present invention provides a method for producing N-phosphonomethylglycine which comprises reacting an aminomethylphosphonic acid with glycolonitrile, or formaldehyde and hydrogen cyanide in situ, under an alkaline condition to convert the aminomethylphosphonic acid into an N-phosphonomethylglycinonitrile salt or a mixture of an N-phosphonomethylglycinonitrile salt and N-phosphonomethylglycinonitrile, and then hydrolyzing the product under an acidic condition. Subsequent to a reaction step for the production of N-phosphonomethylglycinonitrile, the reaction product is hydrolyzed by adding thereto an acid in a prescribed amount. Accordingly, the use of a large amount of an alkaline metal hydroxide and the neutralization step for obtaining N-phosphonomethylglycine after hydrolysis, which steps are necessary in a conventional alkali hydrolysis method, are omitted in the present invention.

    摘要翻译: 本发明提供了一种N-膦酰基甲基甘氨酸的制备方法,该方法包括使氨基甲基膦酸与乙醇腈或甲醛和氰化氢在碱性条件下原位反应,将氨基甲基膦酸转化为N-膦酰基甲基甘氨腈盐或N- 膦酰基甲基甘氨腈盐和N-膦酰基甲基甘氨腈,然后在酸性条件下水解产物。 在制备N-膦酰基甲基甘氨腈的反应步骤之后,通过向其中加入规定量的酸来水解反应产物。 因此,在本发明中,省略了大量碱金属氢氧化物的使用和水解后得到N-膦酰基甲基甘氨酸的中和工序,这些步骤在常规碱水解法中是必需的。

    Preparation of N-acylaminomethylphosphonic acid
    10.
    发明授权
    Preparation of N-acylaminomethylphosphonic acid 失效
    N-酰氨基甲基膦酸的制备

    公开(公告)号:US5324855A

    公开(公告)日:1994-06-28

    申请号:US961363

    申请日:1992-10-15

    IPC分类号: C07F9/24 C07F9/38

    CPC分类号: C07F9/3813

    摘要: N-acylaminomethylphosphonic acid is prepared from an N-methylolamide compound and a phosphorus trihalide. The starting compounds are mixed and heated in an aprotic solvent in the presence of water in a 0.25 to 2.5 times molar amount relative to the phosphorus trihalide at 60.degree. to 160.degree. C., and the reaction mixture is contacted with water. The N-methylolamide compound is a compound selected from the group consisting of N-methylol-lower alkylamides and N-methylolarylamides. The phosphorus trihalide is preferably phosphorus trichloride. As the aprotic solvent is used one or more of hydrocarbons, halogenated hydrocarbons, ethers, polyethers, nitriles, and aromatic nitro compounds. The mixing may be carried out at a temperature of 60.degree. C. The water present at the initiation of the reaction is in a 1.0 to 1.8 times molar amount relative to the phosphorus trihalide.

    摘要翻译: N-酰氨基甲基膦酸由N-羟甲基酰胺化合物和三卤化磷制备。 将起始化合物在非质子溶剂中在相对于三卤化磷在0.25至160℃下以0.25至2.5倍摩尔量存在的水中加热,并将反应混合物与水接触。 N-羟甲基酰胺化合物是选自N-羟甲基 - 低级烷基酰胺和N-羟甲基芳基酰胺的化合物。 三卤化磷优选为三氯化磷。 由于非质子溶剂使用一种或多种烃,卤代烃,醚,聚醚,腈和芳族硝基化合物。 混合可以在60℃的温度下进行。反应开始时存在的水相对于三卤化磷的摩尔量为1.0〜1.8倍。