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    251.
    发明专利
    未知

    公开(公告)号：NL6414474A

    公开(公告)日：1965-07-26

    申请号：NL6414474

    申请日：1964-12-11

    IPC: C07C201/10 ,  C07C201/14 ,  C07C205/02

    Abstract: Nitroparaffins are made by reacting an alkyl nitrite, having at least 2 carbon atoms, with nitric acid or an oxide of nitrogen higher than nitric oxide in the vapour phase at a temperature of at least 240 DEG C. The reaction proceeds with splitting of the alkyl nitrite molecule to yield a nitroparaffin containing fewer carbon atoms than the starting material. Nitrogen dioxide is specified as a suitable nitrating agent. Examples relate to the preparation of nitromethane, nitroethane, 2-nitropropane, nitrobutane and nitropentane.

    Improvements in or relating to process for making fluorochloronitroaromatic compounds
    252.
    发明专利
    Improvements in or relating to process for making fluorochloronitroaromatic compounds 未知

    公开(公告)号：GB687962A

    公开(公告)日：1953-02-25

    申请号：GB1732850

    申请日：1950-07-11

    Applicant: ETHYL CORP

    Inventor： KOLKA ALFRED JEROME ,  LIGETT WALDO BUFORD

    IPC: C07C201/14 ,  C07C205/12

    Abstract: The invention comprises chloro- and/or bromo-fluoronitroaromatic compounds having an aromatic nucleus of the benzene series, substituted by chloro and/or bromo, fluoro and nitro groups, the total number of such substituents being at least four, and comprises also the process for the preparation of the compounds by thermal decomposition of the diazonium fluoborate or fluoride, brominating or chlorinating the fluorinated nucleus and nitrating the product. Suitably the product of chlorination or bromination is fractionated and a desired fraction chosen for nitration. Many chloro or bromo, fluoronitro derivatives of benzene, naphthalene, anthracene, phenanthrene and chrysene are specified. In an example aniline is diazotized in fluoroboric acid solution to give benzene diazonium fluoroborate which is decomposed to fluorobenzene, chlorinated and the trichlorofluorobenzene fraction nitrated to trichlorofluorodinitrobenzene.ALSO:Fungicidal compositions comprise chloroand/or bromo-fluoronitroaromatic compounds having an aromatic nucleus of the benzene series (e.g. benzene, naphthalene, anthracene, chrysene, phenanthrene) substituted with chloro and/or bromo fluoro and nitro groups the total number of such substituent groups being at least four (see Group IV (b) for preparation) in admixture with a carrier. Specified carriers are carbon, silica gel, diatomaceous earth, fuller's earth, talc and sulphur and liquid diluents such as ketones, hydrocarbon oils (e.g. kerosene) or halogenated hydrocarbons. Tests are described in which the active fungicides are trichlorofluorodinitrobenzene, dichlorofluorodinitrobenzene and chlorodifluorodinitrobenzene.

    Improvements in and relating to the production of organic nitrogen compounds
    254.
    发明专利
    Improvements in and relating to the production of organic nitrogen compounds 未知

    公开(公告)号：GB608758A

    公开(公告)日：1948-09-21

    申请号：GB2476644

    申请日：1944-12-11

    Applicant: CHARLES WILLIAM SCAIFE ,  HAROLD BALDOCK ,  ICI LTD

    IPC: C07B43/02 ,  C07C201/08 ,  C07C201/14 ,  C07C201/16 ,  C07C205/02 ,  C07C205/05 ,  C07C205/15 ,  C07C205/18 ,  C07C205/40 ,  C07C205/41 ,  C07C205/51

    Abstract: Nitro-compounds are prepared by treating ethylene or cyclohexene with nitrogen trioxide or nitric oxide, and oxygen or an oxygen-containing gas such as air, but excluding the process in which prior to contact with the olefine, the nitrogen oxide and oxygen or oxygen-containing gas are reacted together and in which the nitrogen oxide content of the reacted mixture is present as nitrogen tetroxide. Nitration may be effected in the presence of a solvent of the type specified in Specification 580,260 or other solvents inert to the nitrogen oxides. Normally, anhydrous conditions are employed. The nitrogen oxide and oxygen or air may be passed continuously through a solution of cyclohexene or ethylene or through liquid cyclohexene. Ethylene, however, is preferably passed together with oxygen or air through the nitrogen oxides or solutions thereof. The oxygen or oxygen-containing gas may be passed in at any stage of the process. The olefines used may contain diluents. The products comprise dinitro-compounds, nitro/nitrates and nitrites. To facilitate working up, the reaction mixture is treated with water or an aliphatic alcohol containing less than 6 carbon atoms, whereby the nitrites are hydrolysed to nitro-alcohols. Products obtainable are dinitro-ethane, beta-nitroethanol and its nitrate from ethylene and 1 : 2-dinitrocyclohexane, 1-nitro-cyclohexanol-2 and its nitrate from cyclohexene. A number of methods of separating the various products are described. According to the Provisional Specification, the starting materials may comprise any aliphatic mono-olefines, other than those containing 3-6 carbon atoms, or cyclic mono-olefines or substituted derivatives thereof.

    Improvements in and relating to the manufacture of organic nitrogen compounds
    255.
    发明专利
    Improvements in and relating to the manufacture of organic nitrogen compounds 未知

    公开(公告)号：GB575604A

    公开(公告)日：1946-02-26

    申请号：GB1238142

    申请日：1942-09-02

    Applicant: ARTHUR ERNEST WILDER SMITH ,  ICI LTD ,  CHARLES WILLIAM SCAIFE

    IPC: C07C201/14 ,  C07C205/02 ,  C07C205/15 ,  C07C205/40

    Abstract: The reaction of ethylene with nitrogentetroxide, below the critical temperature of the latter, to produce 1 : 2-dinitroethane, b -nitroethanol and b -nitroethylnitrate is effected in the presence of oxygen. In an example, a mixture of dry ethylene and oxygen is passed into liquid nitrogen tetroxide. The resulting mixture, is degassed by passing in air and is poured into methanol cooled with solid carbondioxide and methanol. 1 : 2-Dinitroethanol, thus precipitated is separated and the methanol removed from the remaining solution. The resulting oil is treated with a mixture of benzene and water to separate the b -nitroethanol from the b -nitroethylnitrate. The latter is obtained from the benzene solution, and the aqueous solution is neutralised and extracted with ether to obtain the b -nitroethanol. A mixture of oxygen with an inert gas, such as air may be employed instead of oxygen. Specification 575,618 is referred to.

    질산염을 이용한 디니트로알킬 알코올의 제조방법
    257.
    发明公开
    질산염을 이용한 디니트로알킬 알코올의 제조방법 无效
    使用硝酸盐制备食品级酒精的方法

    公开(公告)号：KR1020040017112A

    公开(公告)日：2004-02-26

    申请号：KR1020020049239

    申请日：2002-08-20

    Applicant: (주)퓨전켐텍크

    Inventor： 이재호

    IPC: C07C201/14

    Abstract: PURPOSE: Provided is a process for preparing a dinitroalkyl alcohol with a high purity and at a high yield, which reduces the cost needed for raw materials by using a mononitro compound as a starting material and a nitrate as a reactant. CONSTITUTION: The process for preparing a dinitroalkyl alcohol using a nitrate comprises the steps of: (a) reacting a mononitro compound with an aqueous sodium hydroxide solution; (b) introducing a nitrate and a nitrite to the reaction mixture and stirring at 10 deg.C to form a homogeneous reaction solution; (c) introducing the reaction solution to an aqueous silver nitrate solution at once; (d) adding an aqueous sodium hydroxide solution to the reaction mixture to control the pH to 12; (e) filtering the reaction mixture to separate silver(Ag); (f) adding acetic acid to the reaction mixture to control the pH to 8.5 and introducing an aqueous formaldehyde solution; and (g) adding acetic acid to the reaction mixture to control the pH to 5 and stirring to complete the reaction.

    Abstract translation: 目的：提供一种制备高纯度和高收率的二硝基烷基醇的方法，其通过使用单硝基化合物作为起始原料和硝酸盐作为反应物而降低原料所需的成本。 构成：使用硝酸盐制备二硝基烷基醇的方法包括以下步骤：（a）使单硝基化合物与氢氧化钠水溶液反应; （b）将硝酸盐和亚硝酸盐引入反应混合物中并在10℃下搅拌以形成均匀的反应溶液; （c）立即将反应溶液引入硝酸银水溶液中; （d）向反应混合物中加入氢氧化钠水溶液以将pH控制在12; （e）将反应混合物过滤以分离银（Ag）; （f）向反应混合物中加入乙酸以控制pH至8.5并引入甲醛水溶液; 和（g）向反应混合物中加入乙酸以将pH控制至5并搅拌以完成反应。

    高分子担持ホウ素触媒及びこの触媒を用いたマイケル付加反応生成物の製法
    259.
    发明申请
    高分子担持ホウ素触媒及びこの触媒を用いたマイケル付加反応生成物の製法 审中-公开
    聚合物支持的硼烷催化剂和使用该催化剂生产麦芽糖添加反应产物的方法

    公开(公告)号：WO2011111460A1

    公开(公告)日：2011-09-15

    申请号：PCT/JP2011/052731

    申请日：2011-02-09

    Applicant: 独立行政法人科学技術振興機構 ,  小林 修 ,  宮村 浩之 ,  ユー ウージン

    Inventor： 小林　修 ,  宮村　浩之 ,  ユー　ウージン

    IPC: C07C67/343 ,  B01J31/26 ,  C07C69/716 ,  C07C69/757 ,  C07C201/14 ,  C07C205/45 ,  C07C253/30 ,  C07C255/17 ,  C07B61/00

    CPC classification number: C07C253/30 ,  B01J21/02 ,  B01J23/38 ,  B01J23/44 ,  B01J23/52 ,  B01J31/068 ,  B01J31/121 ,  B01J2231/348 ,  B01J2231/349 ,  B01J2231/763 ,  C07C67/347 ,  C07C201/12 ,  C07C2601/08 ,  C07C69/716 ,  C07C69/757 ,  C07C205/45 ,  C07C255/17

    Abstract: 【課題】本発明は、マイケル付加反応へ応用することのできるホウ素を高分子に固定化した高分子担持ホウ素触媒及びこの高分子担持ホウ素触媒を用いてマイケル付加反応により炭素－炭素付加生成物を製造する方法を提供する。【解決手段】本発明の高分子担持ホウ素触媒は、ＮａＢＨ ４ などのホウ素化合物をスチレン系高分子に担持させて成る。この高分子担持ホウ素触媒の存在下液相で、（ａ）ＣＨ ２ （Ｒ １ ） ２ （式中、Ｒ １ は、ＣＯＲ ７ （式中、Ｒ ７ は炭化水素基を表す。）、－ＮＯ ２ 、－ＣＮなどの電子求引性基を表す。）で表される求核剤と、（ｂ）ＣＨ ２ ＝ＣＨ（ＣＯＲ ９ ）（式中、Ｒ ９ は炭化水素基を表す。）で表されるビニル化合物とを反応させて、マイケル付加反応によりＣＨ（Ｒ １ ） ２ －ＣＨ ２ －ＣＨ ２ （ＣＯＲ ９ ）（式中、Ｒ １ 、Ｒ ９ は上記と同じ。）で表される付加生成物を製造する。

    Abstract translation: 公开了一种聚合物负载的硼催化剂，其中可用于迈克尔加成反应的硼负载在聚合物上，以及通过使用该聚合物负载的硼催化剂的迈克尔加成反应制备碳 - 碳加成产物的方法。 该聚合物负载的硼催化剂具有负载在苯乙烯聚合物上的硼化合物，例如NaBH 4。 在该聚合物负载型硼催化剂存在下，在液相中，（a）亲核剂如CH 2（R 1）2（式中，R 1表示吸电子基如COR 7）（式中，R7表示 烃基），-NO 2或-CN）和（b）由CH 2 = CH（COR 9）表示的乙烯基化合物（在该式中，R9表示烃基）在迈克尔加成反应中反应，生成由 CH（R1）2-CH2-CH2（COR9）（式中，R1和R9与上述相同））。

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