Process for the preparation of aralkyl hydroperoxides
    1.
    发明授权
    Process for the preparation of aralkyl hydroperoxides 失效
    制备芳烷基氢过氧化物的方法

    公开(公告)号:US5032688A

    公开(公告)日:1991-07-16

    申请号:US432781

    申请日:1989-11-07

    摘要: A process for the preparation of aralkyl hydroperoxides having the formula (I) is described ##STR1## in which n=1, 2 or 3, Ar means a phenyl group which can be substituted with halogen or one or more branched or straight chain alkyl groups with 1 to 5 C-atoms, or a naphthyl group, and each radical R.sup.1 and R.sup.2 means a low alkyl radical, the alkyl radicals R.sup.1 and R.sup.2 together having 2 to 4 carbon atoms, by reaction of aralkyl carbinols having the formula (II) ##STR2## in which Ar, R.sup.1, R.sup.2 and n have the meaning given for formula (I), with hydrogen peroxide under acid conditions, the reaction being carried out in the presence of an acid-combining agent. An alkali sulphate, ammonium sulphate, alkali hydrogen sulphate and/or ammonium hydrogen sulphate is used in preference as the acid-combining agent. Tert.aralkyl hydroperoxides can be prepared in high yield with a high purity in a simple and safe manner with this process.

    摘要翻译: 描述了具有式(I)的芳烷基氢过氧化物的制备方法,其中n = 1,2或3,其中Ar表示可被卤素取代的苯基或一个或多个支链或直链 具有1至5个C原子的链烷基或萘基,并且每个基团R 1和R 2表示低级烷基,烷基R 1和R 2一起具有2至4个碳原子,通过使具有式 (II)其中Ar,R1,R2和n具有式(I)的含义,在酸性条件下与过氧化氢反应,反应在酸结合剂的存在下进行。 优选使用碱硫酸盐,硫酸铵,碱式硫酸氢盐和/或硫酸氢铵作为酸结合剂。 在这种方法中,可以以简单和安全的方式以高产率制备高烷基氢过氧化物。

    Process and agent for cross-linking organopolysiloxanes
    3.
    发明授权
    Process and agent for cross-linking organopolysiloxanes 失效
    交联有机聚硅氧烷的工艺和试剂

    公开(公告)号:US4743671A

    公开(公告)日:1988-05-10

    申请号:US12989

    申请日:1987-02-10

    CPC分类号: C08K5/14

    摘要: The present invention provides a process for cross-linking organopolysiloxanes by means of a bis-benzoyl peroxide derivative with heating, wherein, as bis-benzoyl peroxide derivative, there is used at least one compound of the general formula: ##STR1## in which the symbols R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5, each independently of one another, have the following meanings: R.sup.1 and R.sup.5 are the same or different and signify alkoxycarbonyl radicals with 2 to 4 carbon atoms in the alkyl moiety or fluorine or hydrogen atoms, R.sup.2 and R.sup.4 are the same or different and signify alkyl radicals with 2 to 8 carbon atoms or hydrogen atoms and R.sup.3 signifies an alkyl radical with 1 to 8 carbon atoms or a hydrogen atom, at least 2 symbols and at most 4 symbols per benzene ring signifying hydrogen atoms.The present invention also provides an agent for carrying out this process which consists essentially of silicone oil in which is contained, in finely divided form, 10 to 80% by weight of at least one compound of general formula (I).

    摘要翻译: 本发明提供了一种通过加热将双 - 苯甲酰基过氧化物衍生物与有机聚硅氧烷交联的方法,其中作为双 - 过氧化苯甲酰衍生物,使用至少一种下列通式的化合物:(I) 其中符号R 1,R 2,R 3,R 4和R 5彼此独立地具有以下含义:R 1和R 5相同或不同,表示烷基部分中具有2至4个碳原子的烷氧基羰基或氟或 氢原子,R2和R4相同或不同,表示具有2至8个碳原子或氢原子的烷基,R 3表示具有1至8个碳原子或氢原子的烷基,至少2个符号和至多4个符号 每个苯环表示氢原子。 本发明还提供了一种用于进行该方法的试剂,其基本上由硅油组成,其中以细碎形式含有10至80重量%的至少一种通式(I)的化合物。

    Process for producing 2,5-dimethyl-2,5-dihydroperoxyhexane
    5.
    发明授权
    Process for producing 2,5-dimethyl-2,5-dihydroperoxyhexane 失效
    2,5-二甲基-2,5-二氢过氧化己烷的制备方法

    公开(公告)号:US5856586A

    公开(公告)日:1999-01-05

    申请号:US776327

    申请日:1997-01-24

    CPC分类号: C07C409/04 C07C407/00

    摘要: Disclosed is a process for the preparation of 2,5-dimethyl-2,5-dihydroperoxyhexene by reaction of 2,5-dimethyl-1,5-hexadiene with hydrogen peroxide in an acidic medium. According to this process, the 2,5-dimethyl-2,5-dihydroperoxyhexane can be prepared with good yield and in a technically simple way.

    摘要翻译: PCT No.PCT / EP95 / 02987第 371日期1997年1月24日 102(e)日期1997年1月24日PCT提交1995年7月27日PCT公布。 出版物WO96 / 03372 日期1996年2月8日公开是通过在酸性介质中通过2,5-二甲基-1,5-己二烯与过氧化氢的反应来制备2,5-二甲基-2,5-二氢过氧化己烯的方法。 根据该方法,可以以良好的产率和技术上简单的方法制备2,5-二甲基-2,5-二氢过氧化己烷。

    Process for the production of 2,5-dimethyl-2,5-di-t-butylperoxy-hexane
    6.
    发明授权
    Process for the production of 2,5-dimethyl-2,5-di-t-butylperoxy-hexane 失效
    制备2,5-二甲基-2,5-二叔丁基过氧 - 己烷的方法

    公开(公告)号:US6034280A

    公开(公告)日:2000-03-07

    申请号:US171233

    申请日:1998-10-12

    申请人: Eberhard Hagel

    发明人: Eberhard Hagel

    CPC分类号: C07C409/16 C07C407/00

    摘要: 2,5-dimethyl-2,5-di-t-butylperoxy-hexane is produced by reacting 2,5-dimethyl-1,5-hexadiene with t-butylhydroperoxide under acid catalysis in the presence of an electron pair acceptor Lewis acid in a substantially anhydrous solvent. If one uses technical water-containing t-butylhydroperoxide, the water can be separated, after mixing with the 2,5-dimethyl-1,5-hexadiene, by adding sulfuric acid or calcium chloride and subsequently the electron pair acceptor Lewis acid is added.

    摘要翻译: PCT No.PCT / EP97 / 01937 Sec。 371日期:1998年10月13日 102(e)1998年10月13日PCT PCT 1997年4月17日PCT公布。 公开号WO97 / 38974 日期:19972年10月23日5,5-二甲基-2,5-二叔丁基过氧 - 己烷是在酸性催化下,在电子存在下使2,5-二甲基-1,5-己二烯与叔丁基过氧化氢 对受体路易斯酸在基本无水的溶剂中。 如果使用技术含水的叔丁基过氧化氢,则可以通过加入硫酸或氯化钙与2,5-二甲基-1,5-己二烯混合后分离水,然后加入电子对受体路易斯酸 。

    Process for the preparation of tert. alkyl-tert. aralkyl peroxides
    8.
    发明授权
    Process for the preparation of tert. alkyl-tert. aralkyl peroxides 失效
    制备叔丁醇的方法 烷基叔丁基 芳烷基过氧化物

    公开(公告)号:US4864064A

    公开(公告)日:1989-09-05

    申请号:US100200

    申请日:1987-09-23

    申请人: Eberhard Hagel

    发明人: Eberhard Hagel

    CPC分类号: C07C409/16 C07C407/00

    摘要: Disclosed is a process for the preparation of tert. alkyl-tert. aralkyl peroxides with the general formula ##STR1## where R represents an alkyl radical with 1 to 4 C-atoms, R', R" and R'" represent the same or different alkyl radicals with 1 to 5 C-atoms and n is a number from 1 to 3, by reacting an olefin with the general formula ##STR2## with a tert. alkyl hydroperoxide with the general formula ##STR3## where R, R' and R" and R'" and n having the meaning indicated above the presence of aqueous hydrochloric acid.

    摘要翻译: 公开了制备叔丁醇的方法。 烷基叔丁基 具有通式为其中R表示具有1至4个C原子的烷基的芳烷基过氧化物,R',R“和R”表示具有1至5个C原子的相同或不同的烷基, n是1至3的数,通过使具有通式II的烯烃与叔丁醇反应。 具有通式“IMAGE”III的烷基氢过氧化物,其中R,R'和R“和R”'和n具有上述盐酸水溶液的含义。