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85 条记录 (耗时 0.017 秒)

    Process for the dealkylation of tert.-alkyl substituted phenols
    11.
    发明授权
    Process for the dealkylation of tert.-alkyl substituted phenols 失效
    叔烷基取代酚的脱烷基化方法

    公开(公告)号：US4150243A

    公开(公告)日：1979-04-17

    申请号：US744211

    申请日：1976-11-22

    申请人： Dieter W. Bruck ,  Helmut Fiege ,  Johann Renner ,  Feliks Bitners ,  Josef Haydn ,  Karlfried Wedemeyer

    发明人： Dieter W. Bruck ,  Helmut Fiege ,  Johann Renner ,  Feliks Bitners ,  Josef Haydn ,  Karlfried Wedemeyer

    IPC分类号： C07C27/00 ,  C07C37/50 ,  C07C39/07 ,  C07C67/00 ,  C07C39/04

    CPC分类号： C07C37/50

    摘要： A process for the tertiary dealkylation of a tertiary alkyl containing m- and/or p-cresol wherein a tertiary alkyl containing m- and/or p-cresol is continously introduced into a reaction vessel with a small amount of sulfuric acid or an quivalent amount of a sulfonic acid and the reaction vessel contains a high concentration of m- and/or p-cresol or a high boiling phenol which under the prevailing reaction conditions is not substantially vaporized from the reaction mixture. The reaction mixture is maintained at a temperature of no greater than 230.degree. C. The reaction products are withdrawn continuously from the reactor (and separated into its components) and at the same time a small amount of the reaction mixture being withdrawn intermittently or continously from the reactor.

    摘要翻译： 含有m-和/或对甲酚的叔烷基叔烷基化的方法，其中将含有间 - 和/或对 - 甲酚的叔烷基连续地引入具有少量硫酸或一定量的硫酸的反应容器中 的磺酸，并且反应容器含有高浓度的m-和/或对甲酚或高沸点苯酚，其在主要反应条件下基本上不从反应混合物中汽化。 将反应混合物保持在不高于230℃的温度。将反应产物从反应器中连续取出（并分离成其组分），同时将少量的反应混合物间歇地或连续地从 反应堆。

    Process for purifying alkylphenolz
    12.
    发明授权
    Process for purifying alkylphenolz 失效
    纯化烷基酚的方法

    公开(公告)号：US4113975A

    公开(公告)日：1978-09-12

    申请号：US757422

    申请日：1977-01-06

    申请人： Helmut Fiege ,  Josef Haydn ,  Johann Renner ,  Karlfried Wedemeyer

    发明人： Helmut Fiege ,  Josef Haydn ,  Johann Renner ,  Karlfried Wedemeyer

    IPC分类号： C07C37/68 ,  C07C27/00 ,  C07C37/72 ,  C07C37/86 ,  C07C39/06 ,  C07C67/00 ,  C07C37/28

    CPC分类号： C07C37/72

    摘要： A process for the removal of acids and potential acid-forming agents from a composition containing such acids and potential acid-forming agents and an alkylphenol which composition is obtained by reacting phenols with alkenes in the presence of sulfuric acid or a sulfonic acid, and for treating the effluent thereby obtained, the process being characterized by the steps of:(a) extracting a major amount of the acid constituents from the alkylphenol mixture by means of water;(b) treating the alkylphenol mixture with a dilute aqueous alkali solution in an amount such that the alkali is insufficient to neutralize all the acid originally present in the alkylphenol mixture,(c) separating the alkylphenol mixture from the aqueous alkali solution;(d) combining the aqueous phases obtained from steps (a) and (b);(e) heating the combined aqueous phases to a temperature of 100.degree. to 200.degree. C,(f) separating off the organic phase obtained in step (e); and(g) discharging the aqueous phase.

    Preparation of 2-alkyl- and 2-aryl-thiomethylphenols
    14.
    发明授权
    Preparation of 2-alkyl- and 2-aryl-thiomethylphenols 失效
    2-烷基 - 和2-芳基 - 硫代甲基苯酚的制备

    公开(公告)号：US4304940A

    公开(公告)日：1981-12-08

    申请号：US181593

    申请日：1980-08-27

    申请人： Karlfried Wedemeyer ,  Helmut Fiege

    发明人： Karlfried Wedemeyer ,  Helmut Fiege

    IPC分类号： C07B61/00 ,  B01J21/00 ,  B01J21/02 ,  B01J21/10 ,  B01J23/00 ,  B01J23/02 ,  B01J23/06 ,  B01J23/34 ,  B01J23/36 ,  B01J23/70 ,  C07C20060101 ,  C07C67/00 ,  C07C313/00 ,  C07C323/16 ,  C07C148/00

    CPC分类号： C07C323/00

    摘要： In the preparation of a 1-alkyl- and 2-aryl-thio-methylphenol of the formula ##STR1## in which R.sup.1 is, or the radicals R.sup.1 are, in the 3-, 5- and/or 6-positions relative to the hydroxyl group and each independently is a hydrogen or halogen atom, or an alkyl, cycloalkyl, aryl, aralkyl or alkoxy group,n is 1, 2, or 3, andR.sup.2 is an optionally substituted alkyl group having 1 to 12 carbon atoms, an optionally substituted cycloalkyl group having 3 to 6 carbon atoms, an optionally substituted phenyl radical or an optionally substituted aralkyl radical,by reacting a phenol of the formula ##STR2## with formaldehyde or an formaldehyde producing compound and with a mercaptan or a thiophenol of the formulaR.sup.2 --S--H.the improvement which comprises effecting the reaction at a temperature of about 90.degree. to 220.degree. C. in the presence of at least one compound of lithium, magnesium, calcium, strontium, barium, zinc, cadmium, lead, manganese, cobalt, nickel, cooper, iron, chromium and aluminum as a catalyst. The products are obtained in high yield and selectivity.

    摘要翻译： 在制备其中R 1为或基团R 1为在相对于C 1 -C 6烷基的3-，5-和/或6-位的式“IMAGE”的1-烷基 - 和2-芳基 - 硫代 - 甲基苯酚 羟基，并且各自独立地为氢或卤素原子，或烷基，环烷基，芳基，芳烷基或烷氧基，n为1,2或3，并且R 2为任选取代的具有1至12个碳原子的烷基， 任选取代的具有3至6个碳原子的环烷基，任选取代的苯基或任选取代的芳烷基，通过使式IMA的苯酚与甲醛或产生甲醛的化合物和式（I）的硫醇或苯硫酚反应， R2-SH。 包括在至少一种锂，镁，钙，锶，钡，锌，镉，铅，锰，钴，镍等的化合物的存在下在约90℃至220℃的温度下进行反应的改进。 铜，铬和铝作为催化剂。 以高产率和选择性获得产品。

    Process for the continuous preparation of di-tertiary butylcresols
    16.
    发明授权
    Process for the continuous preparation of di-tertiary butylcresols 失效
    连续制备二叔丁基甲酚的方法

    公开(公告)号：US4144400A

    公开(公告)日：1979-03-13

    申请号：US748073

    申请日：1976-12-06

    申请人： Helmut Fiege ,  Josef Haydn ,  Johann Renner ,  Karlfried Wedemeyer

    发明人： Helmut Fiege ,  Josef Haydn ,  Johann Renner ,  Karlfried Wedemeyer

    IPC分类号： C07C27/00 ,  C07C37/14 ,  C07C39/06 ,  C07C67/00

    CPC分类号： C07C37/14

    摘要： A process for the continuous preparation of a ditertiary butylcresol wherein m- or p-cresol is reacted with isobutene at elevated temperature using H.sub.2 SO.sub.4 as catalyst wherein the process is carried out stepwise by introducing stepwise into a reaction mixture comprising substantially all of the cresol to be reacted with isobutene. The total amount of isobutene introduced is introduced such that less isobutene is charged in a last stage of the process than in the first stage thereof. Thereafter the catalyst is deactivated.

    摘要翻译： 连续制备二叔丁基甲酚的方法，其中使用H 2 SO 4作为催化剂，在高温下使异丙烯与异丁烯反应，其中该步骤通过逐步引入含有基本上所有甲酚的反应混合物来逐步进行 与异丁烯反应。 导入的异丁烯的总量被引入，使得在该方法的最后阶段比在第一阶段中加入较少的异丁烯。 此后催化剂失活。

    Process for preparing 2-cyanoindan-1-ones
    17.
    发明授权
    Process for preparing 2-cyanoindan-1-ones 失效
    2-氰基茚满-1-酮的制备方法

    公开(公告)号：US06355827B1

    公开(公告)日：2002-03-12

    申请号：US09485957

    申请日：2000-02-18

    申请人： Joachim Komoschinski ,  Helmut Fiege ,  Guido Steffan

    发明人： Joachim Komoschinski ,  Helmut Fiege ,  Guido Steffan

    IPC分类号： C07C25314

    CPC分类号： C07C253/14 ,  C07C2602/08 ,  C07C255/47

    摘要： In a particularly advantageous process for producing 2-cyanoindan-1-ones from 2-halogenated indan-1-ones by reaction with a cyanide salt, the cyanide salt is dissolved in a dipolar aprotic solvent or in a water-miscible ether and 2-halogenated indan-1-one is metered into this solution.

    摘要翻译： 在通过与氰化物盐反应从2-卤代茚满-1-酮生成2-氰基茚满-1-酮的特别有利的方法中，将氰化物盐溶于偶极非质子溶剂或水混溶性醚中， 将卤代茚满-1-酮计量加入该溶液中。