Process For Preparing Halogenoalkylnitrates
    384.
    发明申请
    Process For Preparing Halogenoalkylnitrates 失效
    制备卤代烷基硝酸盐的方法

    公开(公告)号:US20080004463A1

    公开(公告)日:2008-01-03

    申请号:US11667970

    申请日:2005-11-09

    CPC classification number: C07C203/04

    Abstract: A process for preparing a compound of formula (I) X-(CH2)n-ONO2  (I)wherein: X is a halogen atom selected from Cl, Br, I; n is an integer from 3 to 6; said process comprising the slow addition of a compound of formula (II) X-(CH2)n-OH  (II) wherein X and n are as defined above to a nitrating agent selected from the group consisting of concentrated nitric acid/concentrated sulfuric acid (sulfonitric mixture), nitric acid alone, NaNO2 in trifluoroacetic acid, nitronium salts such as NO2BF4 and an organic solvent selected from the group consisting of CH2Cl2, CHCl3, CCl4, perfluorohexane, perfluoroheptane. The invention refers also to solutions containing: a compound of general formula (I) and a solvent selected from the group consisting of CH2Cl2, CHCl3, CCl4, perfluorohexane, perfluoroheptane, characterized in that the compound of formula (I) is present in a concentration not higher than 20% by weight.

    Abstract translation: 制备式(I)化合物的方法<?in-line-formula description =“In-line Formulas”end =“lead”?> X-(CH 2 N 2)n (I)<?in-line-formula description =“In-line Formulas”end =“tail”?>其中:X是选自Cl, Br,I n为3〜6的整数, 所述方法包括缓慢加入式(II)化合物<?in-line-formula description =“In-line Formulas”end =“lead”→> X-(CH 2/2) 其中X和n如上所定义,选自组中的硝化剂,其中X和n如上所定义, 由浓硝酸/浓硫酸(磺化混合物),硝酸单独,三氟乙酸中的NaNO 2,硝酸盐如NO 2 BF 4, / SUB>和选自CH 2/2 Cl 2,CHCl 3,CCl 4,/ SO 3的有机溶剂 >,全氟己烷,全氟庚烷。 本发明还涉及包含通式(I)的化合物和选自CH 2 2 Cl 2,CHCl 3, 全氟己烷,全氟庚烷,其特征在于式(I)化合物的浓度不高于20重量%。

    Nitration of organic compounds and organic nitrogen compounds produced
    385.
    发明授权
    Nitration of organic compounds and organic nitrogen compounds produced 失效
    生成有机化合物和有机氮化合物的硝化

    公开(公告)号:US4496783A

    公开(公告)日:1985-01-29

    申请号:US489467

    申请日:1983-04-28

    CPC classification number: C07C201/08 C07C201/02 C07C201/04

    Abstract: Nitration of organic compounds and organic nitrogen compounds produced.Organic nitrogen compounds are formed in the vapor phase by organic radical formation by reaction of an organic compound with hydroxyl radicals derived from the reaction between hydrogen peroxide and nitrogen dioxide and the nitration of the organic radicals, suitably with nitrogen dioxide. The process may be conducted as a single stage process using an excess of nitrogen dioxide over that required for hydroxyl radical formation. The production of hydroxyl radicals is maximized by the use of a catalytic solid surface such as a solid acid or an acidic oxide or mixed oxide. The product may be a mixture of some or all of the nitrite, nitrate and nitro-derivative which may be used as such, e.g. as a fuel additive, as a source of the individual compounds or as a feedstock for a further synthesis.

    Abstract translation: 生成有机化合物和有机氮化合物的硝化。 通过有机化合物与过氧化氢和二氧化氮之间的反应衍生的羟基自由基反应形成有机氮化合物,并适当地用二氧化氮硝化有机氮化合物。 该方法可以作为使用过量二氧化氮超过羟基自由基形成所需的二氧化氮的单阶段方法进行。 通过使用催化固体表面如固体酸或酸性氧化物或混合氧化物,使羟基自由基的产生最大化。 产物可以是一些或全部亚硝酸根,硝酸根和硝基衍生物的混合物,可以如此使用。 作为燃料添加剂,作为单独化合物的来源或作为进一步合成的原料。

    Esterification of polyvalent alkanols with nitric acid in liquid sulphur dioxide
    389.
    发明授权
    Esterification of polyvalent alkanols with nitric acid in liquid sulphur dioxide 失效
    用硝酸在液态二氧化硫中酯化多元链烷醇

    公开(公告)号:US3316289A

    公开(公告)日:1967-04-25

    申请号:US58174066

    申请日:1966-09-26

    Applicant: STAMICARBON

    CPC classification number: C07C201/02 C07C203/04

    Abstract: 1,138,360. Nitric esters of polyalkanols. STAMICARBON N.V. 26 Sept., 1966 [1 Oct., 1965], No. 42957/66. Heading C2C. Polyhydric alkanols are esterified with nitric acid by reacting with a nitrating acid in a liquid sulphur dioxide medium. Glycerol di- and trinitrates, ethylene glycol dinitrate and diethylene glycol dinitrate are specified and the nitrating acid is a mixture of nitric and sulphuric acid or anhydride with a preferred nitric acid content of 38-43 mol. per cent. The autogenous oxidation of liquid sulphur dioxide removes the heat generated during esterification.

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