Preparation of alkynediols
    21.
    发明授权
    Preparation of alkynediols 失效
    炔二醇的制备

    公开(公告)号:US06369282B1

    公开(公告)日:2002-04-09

    申请号:US09577127

    申请日:2000-05-24

    IPC分类号: C07C3118

    摘要: The process for preparing alkynediols of the formula (I) R1R2C(OH)—C≡C—C(OH)R1R2  (I) where R1, R2 are each independently H, or a C1-20-hydrocarbon radical which may be substituted by one or more C1-6-alkyls and/or be interrupted by nonadjacent heteroatoms and/or contain C—C double or triple bonds, by reacting compounds of the formula (II) R1—C(═O)—R2  (II) with acetylene in a polar aprotic solvent is carried out in the presence of basic alkali metal salts as catalysts.

    摘要翻译: 制备式(I)的炔二醇的方法,其中R 1,R 2各自独立地为H,或可被一个或多个C 1-6 - 烷基取代和/或被不相邻的杂原子中断的C 1-20烃基和/ 或含有CC双键或三键,通过使式(II)化合物与极性非质子溶剂中的乙炔反应,在碱性碱金属盐作为催化剂的存在下进行。

    Method for chlorinating ketones
    23.
    发明授权
    Method for chlorinating ketones 失效
    氯化酮的方法

    公开(公告)号:US06337425B1

    公开(公告)日:2002-01-08

    申请号:US09646186

    申请日:2000-09-14

    IPC分类号: C07C1702

    摘要: In a process for chlorinating ketones which, apart from the carbonyl group, are inert in respect of triarylphosphine dichlorides, except for cyclopropyl methyl ketone, in which the ketones are reacted with a chlorinating agent in the presence of triarylphosphine oxides, the amount of triarylphosphine oxide is from 0.1 to 10 mol %, based on the amount of ketone. The ketones preferably have a least one CH-acid proton in the &agr; position to the carbonyl group.

    摘要翻译: 在氯化酮的过程中,除了在三芳基氧化膦存在下酮与氯化剂反应的环丙基甲基酮以外,除了羰基外,它们是三芳基膦二氯化物是惰性的,三芳基氧化膦 基于酮的量为0.1〜10摩尔%。 酮优选在羰基的α位置具有至少一个CH-酸质子。

    Method for producing alkyne diols
    24.
    发明授权
    Method for producing alkyne diols 失效
    炔二醇的制备方法

    公开(公告)号:US06297407B1

    公开(公告)日:2001-10-02

    申请号:US09744437

    申请日:2001-01-24

    IPC分类号: C07C3118

    摘要: The invention relates to a method for producing alkyne diols by reacting ketones with acetylenic hydrocarbons in an organic solvent in the presence of a base which contains potassium alcoholates of primary and/or secondary alcohols. The alkyne diols are produced while forming adducts which precipitate out of the reaction mixture and which are comprised of alkyne monoalcohols and/or alkyne diols and a base. The stoichiometries of the reaction partners are selected such that gelatinous adducts are formed which comprise a spherical surface, whereby the reaction mixture remains agitable during the entire reaction.

    摘要翻译: 本发明涉及一种在含有伯醇和/或仲醇的醇钾的碱存在下,通过酮与炔烃在有机溶剂中反应制备炔烃的方法。 产生炔二醇,同时形成从反应混合物中沉淀的加合物,其由炔一醇和/或炔二醇和碱组成。 选择反应伴侣的化学计量,使得形成包含球形表面的凝胶状加合物,由此在整个反应期间反应混合物保持敏感。

    Preparation of N-alkenylureas
    30.
    发明授权
    Preparation of N-alkenylureas 失效
    N-烯基脲的制备

    公开(公告)号:US5739398A

    公开(公告)日:1998-04-14

    申请号:US675585

    申请日:1996-07-03

    CPC分类号: C07C273/1863

    摘要: A process for preparing N-alkenylureas of the general formula I ##STR1## where R.sup.1 and R.sup.2 are hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.2 - to C.sub.40 -alkenyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcyc1oalkyl, C.sub.4 - to C.sub.20 -cycloalkylalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl, or aryl, C.sub.7 - to C.sub.20 -alkylaryl or C.sub.7 - to C.sub.20 -aralkyl which are mono- to pentasubstituted by C.sub.1 - to C.sub.8 -alkyl, C.sub.1 - to C.sub.8 -alkoxy or halogen, together are a C.sub.2 - to C.sub.10 -alkylene chain which is unsubstituted or mono- to hexasubstituted by C.sub.1 - to C.sub.8 -alkyl, and R.sup.3 and R.sup.4 are hydrogen or C.sub.1 - to C.sub.8 -alkyl, by reaction of ureas of the general formula II ##STR2## where R.sup.1 and R.sup.2 have the abovementioned meanings, with an alkenyl carboxylate of the general formula III ##STR3## where R.sup.3 and R.sup.4 have the abovementioned meanings and R.sup.5 is hydrogen, C.sub.1 - to C.sub.40 -alkyl, C.sub.3 - to C.sub.20 -cycloalkyl, C.sub.4 - to C.sub.20 -alkylcycloalkyl, aryl, C.sub.7 - to C.sub.20 -alkylaryl, C.sub.7 - to C.sub.20 -aralkyl, or aryl or C.sub.7 - to C.sub.20 -aralkyl which is mono- to trisubstituted by C.sub.1 - to C.sub.8 -alkyl, at from 0.degree. to 180.degree. C. and from 0.01 to 10 bar, by carrying out the reaction in the presence of a base is described.

    摘要翻译: 制备通式I(I)的N-烯基脲的方法,其中R 1和R 2是氢,C 1至C 40烷基,C 2至C 40链烯基,C 3 -C 20环烷基,C 4 -C 20 - 烷基环烷基,C 4 -C 20 - 环烷基烷基,芳基,C 7 -C 20 - 烷基芳基或C 7 -C 20 - 芳烷基,或被C 1 - 单取代成五取代的芳基,C 7 -C 20 - 烷基芳基或C 7 -C 20 - 芳烷基 -C 8 - 烷基,C 1 -C 8 - 烷氧基或卤素,一起是未被取代或被C 1〜C 8 - 烷基单取代或六取代的C 2〜C 10 - 亚烷基链,R 3和R 4是氢或C 1〜 通过其中R1和R2具有上述含义的通式II的脲(II)与通式III的烯基羧酸酯(III)的反应,其中R 3和R 4具有 R 5是氢,C 1 -C 40 - 烷基,C 3 -C 20 - 环烷基,C 4 -C 20 - 烷基环烷基,芳基,C 7 -C 20烷基芳基,C 7 -C 20 - 芳烷基或芳基或C 7 - 被单 - 三取代的C 20 - 芳烷基 描述了通过在碱的存在下进行反应的0至180℃和0.01至10巴的C 1 -C 8烷基。