Process for the preparation of extensively fluorinated aliphatic
hydrocarbons having 1 or 2 bromine or chlorine atoms in the molecule
    3.
    发明授权
    Process for the preparation of extensively fluorinated aliphatic hydrocarbons having 1 or 2 bromine or chlorine atoms in the molecule 失效
    在分子中制备具有1或2个溴或氯原子的宽含氟脂族烃的方法

    公开(公告)号:US5051535A

    公开(公告)日:1991-09-24

    申请号:US655305

    申请日:1991-02-14

    CPC classification number: C07C41/22 C07C17/208

    Abstract: A process is described for the preparation of the title compounds from the corresponding iodine-containing compounds by reaction with bromide or chloride ions present as salts, in a dipolar aprotic solvent, in the presence of a metal complex compound which contains chromium, nickel, cobalt or rhodium as the central atom and contains, per central atom, 1, 2 or 3 bromine or chlorine atoms and at least one additional phosphorus-containing ligand, at 20.degree. to 140.degree. C. Good yields are obtained in this way without the difficulties associated with the known procedure using elemental halogens at elevated temperatures. The compounds prepared can be used in the medical sector and as liquids resistant to high temperatures.

    Abstract translation: 描述了一种用于在偶极非质子传递溶剂中,在含有铬,镍,钴的金属络合物存在下,通过与作为盐存在的溴化物或氯离子的反应从相应的含碘化合物制备标题化合物的方法 或铑作为中心原子,并且在20°至140℃下每中心原子含有1,2或3个溴或氯原子和至少一种另外的含磷配体。以这种方式获得良好的产率,没有困难 与在升高的温度下使用元素卤素的已知方法相关。 所制备的化合物可用于医疗领域和耐高温液体。

    Process for the preparation of perfluorocarboxylic acids
    4.
    发明授权
    Process for the preparation of perfluorocarboxylic acids 失效
    制备全氟羧酸的方法

    公开(公告)号:US4751027A

    公开(公告)日:1988-06-14

    申请号:US939572

    申请日:1986-12-09

    CPC classification number: C07C51/16

    Abstract: A process is described for the preparation of perfluorocarboxylic acids by oxidizing perfluoroalkylalkenes with permanganate in aqueous solution, catalytic amounts of at least one quaternary ammonium salt containing alkyl and/or arylalkyl groups being added. It is possible by these means to prepare even perfluorocarboxylic acids having a fairly long chain in a high state of purity in a readily controllable reaction and in a good space-time yield.

    Abstract translation: 描述了通过用高锰酸盐在水溶液中氧化全氟烷基烯烃制备全氟羧酸的方法,催化量的至少一种含有烷基和/或芳烷基的季铵盐被加入。 通过这些方法,可以在容易控制的反应中以高的时间纯度制备具有高纯度的相当长链的全氟羧酸。

    Process for the photochemical production of halogen compounds
    6.
    发明授权
    Process for the photochemical production of halogen compounds 失效
    卤化物化学生产工艺

    公开(公告)号:US5240574A

    公开(公告)日:1993-08-31

    申请号:US741897

    申请日:1991-08-08

    CPC classification number: C08F10/00

    Abstract: The present invention provides a process for the photochemical production of compounds of the general formula:R--(C.sub.2 R.sub.4 ').sub.n --Xby telomerisation of an alkyl halide R--X as telogen and of an olefin C.sub.2 R.sub.4 ' as monomer, in which R is an alkyl radical which is not halogenated or is partly or completely halogenated, R' can in each case be the same or different and, independently of one another, are hydrogen, fluorine, chlorine or bromine atoms or unsubstituted or substituted alkyl or aryl radicals, n is a natural number from 2 to 10 and X is a bromine or iodine atom, wherein(1) a reaction mixture is produced which contains the olefin and the alkyl halide,(2) this reaction mixture is irradiated with ultra-violet light, the wavelength of which is from 230 to 350 nm, and(3) the end product or end products is/are recovered from the reaction mixture.

    Abstract translation: 本发明提供了一种通过将卤代烷RX RX作为环糊精和作为单体的烯烃C2R4'的调聚来光化生产通式为R-(C2R4')nX的化合物的方法,其中R是烷基,其中R 不是卤化的或部分或完全卤化,R'在每种情况下可以相同或不同,并且彼此独立地是氢,氟,氯或溴原子或未取代或取代的烷基或芳基,n是天然的 数2至10,X为溴或碘原子,其中(1)制备含有烯烃和烷基卤的反应混合物,(2)将该反应混合物用紫外线照射,其波长为 为230〜350nm,(3)从反应混合物中回收终产物或终产物。

    Process for the preparation of halogenotetrafluoropropionic acid
    7.
    发明授权
    Process for the preparation of halogenotetrafluoropropionic acid 失效
    制备卤代丙酸的方法

    公开(公告)号:US5068415A

    公开(公告)日:1991-11-26

    申请号:US93309

    申请日:1987-09-04

    CPC classification number: C07C53/21 C07C17/25 C07C17/275 C07C51/16

    Abstract: The halogenotetrafluoropropionic acid 3-iodotetrafluoropropionic acid of the formula ICF.sub.2 CF.sub.2 COOH, it is prepared by reacting iodine, tetrafluoroethylene and ethylene in a one-pot reaction under specific conditions, reacting the resulting compound ICF.sub.2 CF.sub.2 CH.sub.2 CH.sub.2 I with a base in order to eliminate hydrogen iodide and oxidizing the compound ICF.sub.2 CF.sub.2 --CH.dbd.CH.sub.2 thus obtained to give 3-iodotetrafluoropropionic acid. The halogenotetrafluoropropionic acid is an advantageous starting compound for the preparation of valuable unsaturated compounds containing functional groups.

    Abstract translation: 通式为ICF2CF2COOH的卤代四氟丙酸3-碘代四氟丙酸,其特征在于在一锅反应中使碘,四氟乙烯和乙烯反应制备,使得到的化合物ICF 2 CF 2 CH 2 CH 2 I与碱反应,以消除碘化氢并氧化化合物 ICF2CF2-CH = CH2,得到3-碘四氟丙酸。 卤代四氟丙酸是制备含有官能团的有价值的不饱和化合物的有利起始化合物。

    Process for the preparation of 2-alkenyl 1,1,2-trifluoro-2-halogenoethyl
ethers
    8.
    发明授权
    Process for the preparation of 2-alkenyl 1,1,2-trifluoro-2-halogenoethyl ethers 失效
    2-烯基1,1,2-三氟-2-卤代乙基醚的制备方法

    公开(公告)号:US4433180A

    公开(公告)日:1984-02-21

    申请号:US379438

    申请日:1982-05-18

    CPC classification number: C07C43/17

    Abstract: A process is described for the preparation of 2-alkenyl 1,1,2-trifluoro-2-halogenoethyl ethers by reacting optionally substituted allyl alcohols with fluoroolefins in the presence of an alkali metal hydroxide as catalyst, in which the reaction is carried out by intimately mixing the reactants with an N,N-dialkylcarboxylic acid amide. The said ethers are suitable as intermediate products for the preparation of addition products by the addition of alcohols, primary or secondary amines or R.sub.3 SiH compounds, and are also suitable as comonomers for fluorine-containing copolymers.

    Abstract translation: 描述了通过在碱金属氢氧化物作为催化剂的存在下使任选取代的烯丙基醇与氟代烯烃反应来制备2-烯基1,1,2-三氟-2-卤代乙基醚的方法,其中反应由 将反应物与N,N-二烷基羧酸酰胺紧密混合。 所述醚适合作为通过添加醇,伯胺或仲胺或R3SiH化合物制备加成产物的中间产物,并且也适用作含氟共聚物的共聚单体。

    Fluorine-containing solvents for lithium batteries having increased
safety
    10.
    发明授权
    Fluorine-containing solvents for lithium batteries having increased safety 失效
    用于锂电池的含氟溶剂具有增加的安全性

    公开(公告)号:US5916708A

    公开(公告)日:1999-06-29

    申请号:US853856

    申请日:1997-05-09

    CPC classification number: H01M6/164 H01M2300/0034

    Abstract: The safety of secondary lithium cells is remarkedly enhanced when partially fluorinated ethers of the formulaeRO--�(CH.sub.2).sub.m O!.sub.n --CF.sub.2 --CFH--X (I)and/orX--CFH--CF.sub.2 O--�(CH.sub.2).sub.m O!.sub.n --CF.sub.2 --CFH--X(II)are being used, wherein R is a straight-chain alkyl group containing 1 to 10 carbon atoms or a branched alkyl group containing 3 to 10 carbon atoms, X is fluorine, chlorine or a perfluoroalkyl group containing 1 to 6 carbon atoms, which may also contain ethereal oxygen, m is an integer from 2 to 6 and n is an integer from 1 to 8. Preferred are compounds of the formula (I), wherein R is a methyl group, X is fluorine, m is 2 and n is an integer from 1 to 3 and also compounds of the formula (II), wherein m is 2 and n is an integer from 1 to 3.

    Abstract translation: 当式RO- [(CH2)mO] n-CF2-CFH-X(I)和/或X-CFH-CF2O - [(CH2)mO] n的部分氟化醚时,二次锂电池的安全性明显增强 使用-CF 2 -CFH-X(II),其中R是含有1至10个碳原子的直链烷基或含有3至10个碳原子的支链烷基,X是氟,氯或含氟的全氟烷基 1至6个碳原子,其也可以含有醚氧,m是2至6的整数,n是1至8的整数。优选的是式(I)的化合物,其中R是甲基,X是 氟,m为2,n为1〜3的整数,式(II)的化合物,m为2,n为1〜3的整数。

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