Process for the simultaneous preparation of
2,5-dioxo-1,2-oxa-phospholanes and .beta.-halogenpropionic acid halide
    4.
    发明授权
    Process for the simultaneous preparation of 2,5-dioxo-1,2-oxa-phospholanes and .beta.-halogenpropionic acid halide 失效
    同时制备2,5-二氧代-1,2-氧杂磷杂环己烷和{62-卤代丙酸卤化物的方法

    公开(公告)号:US4096182A

    公开(公告)日:1978-06-20

    申请号:US778052

    申请日:1977-03-16

    CPC分类号: C07F9/657172 C07F9/3211

    摘要: 2,5-Dioxo-1,2-oxa-phospholanes of the formula (I) ##STR1## wherein R.sup.1 is an organic radical and R.sup.2 and R.sup.3 each also represents an organic radical or hydrogen, are prepared by reacting 2-haloformylethyl-phosphinic acid halides of the formula (II) ##STR2## wherein R.sup.1, R.sup.2 and R.sup.3 are defined as in formula (I) and X means Cl or Br, preferably Cl, with an approximatey equimolar quantity of acrylic acid. The compounds (II) may also be produced in the reaction batch and in situ by reacting about equimolar quantities of a dihalophosphine of the formula (III) ##STR3## with an .alpha.,.beta.-unsaturated acid (IV)R.sup.4 -- OH (IV)In the formulae (III) and (IV) R.sup.1, R.sup.2, R.sup.3 and X are defined as indicated above.In the reaction there is formed, in addition to the compounds (I), practically exclusively .beta.-halopropionic acid and no free hydrogen halide.The phospholanes (I) are valuable flame retarding agents for plastics, intermediates, for example, for the synthesis of biocidals etc.

    摘要翻译: 式(I)的2,5-二氧代-1,2-氧杂 - 磷酸酯其中R1是有机基团,R2和R3各自也表示有机基团或氢,通过2- 式(II)的卤代甲基乙基 - 次膦酸卤化物其中R 1,R 2和R 3如式(I)中所定义,X表示Cl或Br,优选Cl,具有近似等摩尔量的丙烯酸。 化合物(II)也可以在反应批中生产,并通过使约等摩尔量的式(III)的二卤代膦与(α)β-不饱和酸(IV)R 4 -OH反应 (IV)式(III)和(IV)中,R 1,R 2,R 3和X如上所述定义。

    Process for the continuous oligomerization of hexafluoropropene oxide
    5.
    发明授权
    Process for the continuous oligomerization of hexafluoropropene oxide 失效
    十六烷基氧化物连续低级化的方法

    公开(公告)号:US5087748A

    公开(公告)日:1992-02-11

    申请号:US463391

    申请日:1990-01-11

    CPC分类号: C07C51/58

    摘要: A continuous process for the preparation of perfluorinated carbonyl fluorides from hexafluoropropene oxide (HFPO), in which HFPO is continuously oligomerized in a catalyst solution in devices which allow separation of the heavy product phase from the catalyst phase during the reaction, is described. Different oligomer distributions can be achieved by choice of the catalyst and different operating temperatures. The reaction itself takes place always in the substantial absence of the product which is formed, and achieves a considerable saving in time.

    摘要翻译: 描述了用于从六氟丙烯氧化物(HFPO)制备全氟化羰基氟化物的连续方法,其中HFPO在催化剂溶液中连续低聚,在反应期间允许将重质产物相与催化剂相分离的装置中。 可以通过选择催化剂和不同的操作温度来实现不同的低聚物分布。 反应本身总是在形成的产品的实质上不存在的情况下实现,并且实现了相当大的时间节省。

    Process for the dimerization of hexafluoropropene oxide
    6.
    发明授权
    Process for the dimerization of hexafluoropropene oxide 失效
    六氟环氧丙烷二聚反应的方法

    公开(公告)号:US4973749A

    公开(公告)日:1990-11-27

    申请号:US463545

    申请日:1990-01-11

    CPC分类号: C07C51/58

    摘要: A process for the preparation of the dimer of hexafluoropropene oxide (HFPO), in which the HFPO is dimerized in an aprotic polar solvent in the presence of a catalyst mixture, is described. The catalyst mixture is composed of a metal salt of the elements of the 1st transition metal series of the periodic table and of a tertiary diamine. By bringing in a molar ratio of metal salt to tertiary diamine in the range from 2:1 to 1:2, in particular 1:1, the selectivity for the dimeric compound is greatest, with high yields of the dimer being obtained.

    摘要翻译: 描述了在催化剂混合物存在下,在非质子极性溶剂中将HFPO二聚的六氟环氧丙烷(HFPO)二聚物的制备方法。 催化剂混合物由元素周期表第一过渡金属系列元素的金属盐和叔胺组成。 通过使金属盐与叔胺的摩尔比在2:1至1:2的范围内,特别是1:1,二聚化合物的选择性最大,得到二聚物的高产率。

    Process for preparing cyclic phosphinic acid esters
    7.
    发明授权
    Process for preparing cyclic phosphinic acid esters 失效
    制备环磷酸酯的方法

    公开(公告)号:US4052486A

    公开(公告)日:1977-10-04

    申请号:US670745

    申请日:1976-03-26

    IPC分类号: C07F9/30 C07F9/6571 C07F9/15

    摘要: Process for preparing cyclic phosphinic acid esters of the formula (I) ##STR1## wherein R.sub.1 is an alkyl radical having up to 18 carbon atoms or a phenyl radical being optionally substituted by alkyl, halogen or alkylated amino groups, R.sub.2 stands for a hydrogen atom or has the same meaning as R.sub.1 and n is 1 or 2, which comprises reacting phosphinic acid monoesters of the formula (II) ##STR2## wherein R.sub.3 is an alkyl radical having up to 8 carbon atoms optionally substituted by chlorine atoms and R.sub.1 has the meaning given above, with an alkenol of the formula (III) ##STR3## wherein R.sub.2 and n have the aforesaid meaning, in the presence of catalytic quantities of free radical forming agents, splitting off the alcohol of formula (IV)r.sub.3 oh (iv)simultaneously or subsequently and separating the reaction products, preferably by distillation.

    Curing component for synthetic resins, curable mixtures containing the
same, and the use thereof
    8.
    发明授权
    Curing component for synthetic resins, curable mixtures containing the same, and the use thereof 失效
    用于合成树脂的固化组分,含有其的可固化混合物及其用途

    公开(公告)号:US4847346A

    公开(公告)日:1989-07-11

    申请号:US223449

    申请日:1988-07-22

    摘要: Curing component (A) based on polyisocyanates for binders (B) which contain groups containing active hydrogen, wherein the curing component (A) is a product of the reaction of (a1) polyisocyanates with (a2) .alpha.-hydroxyalkylpyridines.Mixtures of (A) and (B), and also, if appropriate, diluents (C) and additives (D), are stable on storage and give, even at temperatures of 120.degree.-140.degree. C., curing products which are sufficiently solvent-stable. They are suitable, in particular, for surface-coating preparations.

    摘要翻译: 基于含有含活性氢基团的粘合剂(B)的聚异氰酸酯的固化组分(A),其中固化组分(A)是(a1)多异氰酸酯与(a2)α-羟基烷基吡啶的反应的产物。 (A)和(B)的混合物,以及适当的稀释剂(C)和添加剂(D)的混合物在储存时是稳定的,即使在120-140℃的温度下也可以得到足够的固化产物 溶剂稳定。 它们特别适用于表面涂层制剂。