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29 条记录 (耗时 0.014 秒)

    Process for Preparing 1,1,4,4-Tetraalkoxybut-2-Ene Derivatives
    15.
    发明申请
    Process for Preparing 1,1,4,4-Tetraalkoxybut-2-Ene Derivatives 审中-公开
    制备1,1,4,4-四烷氧基-2-烯衍生物的方法

    公开(公告)号：US20080228009A1

    公开(公告)日：2008-09-18

    申请号：US11996547

    申请日：2006-07-31

    申请人： Ingo Richter ,  Hermann Putter ,  Ulrich Griesbach ,  Till Gerlach

    发明人： Ingo Richter ,  Hermann Putter ,  Ulrich Griesbach ,  Till Gerlach

    IPC分类号： C07C41/01

    CPC分类号： C25B3/02

    摘要： Process for preparing 1,1,4,4-tetraalkoxybut-2-ene derivatives of the general formula (I), where the radicals R1 and R2 are each, independently of one another, hydrogen, C1-C6-alkyl, C6-C12-aryl, such as phenyl, or C5-C12-cycloalkyl or R1 and R2 together with the double bond to which they are bound form a C6-C12-aryl radical, such as phenyl, a phenyl radical substituted by one or more C1-C6-alkyl groups, halogen atoms or alkoxy groups or a monounsaturated or polyunsaturated C5-C12-cycloalkyl radical, R3, R4 are each, independently of one another, hydrogen, methyl, trifluoromethyl or nitrile, which comprises electrochemically oxidizing 1,4-dialkoxy-1,3-butadiene of the formula II where the radicals R1, R3 and R4 have the same meanings as in the formula I, in the presence of a C1-C6-alkyl alcohol.

    摘要翻译： 制备通式（I）的1,1,4,4-四烷氧基丁-2-烯衍生物的方法，其中基团R 1和R 2各自为 氢，C 1 -C 6 - 烷基，C 6 -C 12 - 芳基，C 1 -C 6烷基，C 1 -C 6 - ，例如苯基或C 5 -C 12 - 环烷基或R 1和R 2，以及R 2和/或 与它们结合的双键形成C 6 -C 12 - 芳基，例如苯基，被一个或多个C 1〜 C 1 -C 6 - 烷基，卤原子或烷氧基或单不饱和或多不饱和C 5 -C 12 - 环烷基， R 3，R 4各自彼此独立地为氢，甲基，三氟甲基或腈，其包括电化学氧化1,4-二烷氧基-1,3-丁二烯 其中基团R 1，R 3和R 4的式II具有与式I中相同的含义，在t 存在C 1 -C 6 - 烷基醇。

    Process for preparing 2-alkyne 1-acetals
    17.
    发明申请
    Process for preparing 2-alkyne 1-acetals 审中-公开
    制备2-炔-1-缩醛的方法

    公开(公告)号：US20060016695A1

    公开(公告)日：2006-01-26

    申请号：US11186100

    申请日：2005-07-21

    申请人： Ingo Richter ,  Ulrich Griesbach ,  Michael Becker ,  Roland Kessinger

    发明人： Ingo Richter ,  Ulrich Griesbach ,  Michael Becker ,  Roland Kessinger

    IPC分类号： C25B3/00

    CPC分类号： C25B3/02

    摘要： Process for preparing 2-alkyne 1-acetals of the general formula I, where the radicals have the following meanings: R1 is hydrogen, C1-C20-alkyl, C2-C20-alkenyl, C2-C20-alkynyl, C3-C12-cycloalkyl, C4-C20-cycloalkylalkyl, C4-C10-aryl, with these radicals optionally being able to be substituted by hydroxy, halogen, C1-C6-alkoxy, (C1-C6-alkoxy)carbonyl, carboxyl or nitrile groups, R2 is C1-C6-alkyl or a radical of the general formula II where R1 is as defined above, R3 has the same meaning as the radical R2, by electrochemically oxidizing a compound of the general formula III where the radical R1 has the same meaning as in the general formula I, in the presence of C1-C6-alkyl alcohols (alcohol A) or as such.

    摘要翻译： 制备通式I的2-炔炔-1-缩醛的方法，其中基团具有以下含义：R 1是氢，C 1 -C 20 C 2 -C 20烷基，C 2 -C 20 - 烯基，C 2 -C 20 - 炔基 C 3 -C 12 - 环烷基，C 4 -C 20 - 环烷基烷基，C 4 C 1 -C 10 - 芳基，这些基团任选地可以被羟基，卤素，C 1 -C 6 - - 烷氧基，（C 1 -C 6 - 烷氧基）羰基，羧基或腈基，R 2是C 1 - C 1 -C 6 - 烷基或通式II的基团，其中R 1如上所定义，R 3和R 3具有相同的含义 作为基团R 2，通过电化学氧化通式III化合物，其中基团R 1具有与通式I中相同的含义，在 C 1 -C 6 - 烷基醇（醇A）或这样。

    Method for producing M-substituted phenylalkanols by means of isomerization
    18.
    发明授权
    Method for producing M-substituted phenylalkanols by means of isomerization 失效
    通过异构化制备M取代的苯基链烷醇的方法

    公开(公告)号：US08686193B2

    公开(公告)日：2014-04-01

    申请号：US13503488

    申请日：2010-10-19

    申请人： Andreas Lanver ,  Klaus Ebel ,  Karl Beck ,  Ralf Pelzer ,  Jörg Botzem ,  Ulrich Griesbach

    发明人： Andreas Lanver ,  Klaus Ebel ,  Karl Beck ,  Ralf Pelzer ,  Jörg Botzem ,  Ulrich Griesbach

    IPC分类号： C07C45/51 ,  C07C29/56 ,  C07C47/22 ,  A61K8/18

    CPC分类号： C07C29/56 ,  C07C45/29 ,  C11B9/0061 ,  C07C33/20 ,  C07C47/228

    摘要： The invention relates to a process for the preparation of m-substituted phenylalkanols of the formula (I) in which R1 is C1-C5-alkyl and R2, R3, R4 and R5, independently of one another, are hydrogen or methyl, wherein a p-substituted phenylalkanol of the formula (II) in which R1, R2, R3, R4 and R5 having the meanings given under formula (I), is isomerized in the presence of a Friedel-Crafts catalyst to give an m-substituted phenylalkanol of the formula (I). From the m-substituted phenylalkanols of the formula (I) it is possible to form, by oxidation or dehydrogenation, as products of value, the corresponding aldehydes, which are known as fragrances and aroma chemicals.

    摘要翻译： 本发明涉及一种制备式（I）的间位取代的苯基烷醇的方法，其中R 1为C 1 -C 5 - 烷基且R 2，R 3，R 4和R 5彼此独立地为氢或甲基，其中a 式（II）的对取代的苯基链烷醇，其中具有式（I）给出的含义的R 1，R 2，R 3，R 4和R 5在Friedel-Crafts催化剂存在下异构化得到m-取代的苯基烷醇 式（I）。 从式（I）的间位取代的苯基烷醇可以通过氧化或脱氢形成作为有价值的产物，相应的醛被称为香料和芳香化学品。

    METHOD FOR PRODUCING 2-SUBSTITUTED TETRAHYDROPYRANOLS
    20.
    发明申请
    METHOD FOR PRODUCING 2-SUBSTITUTED TETRAHYDROPYRANOLS 有权
    生产2-取代的四氢呋喃的方法

    公开(公告)号：US20120059177A1

    公开(公告)日：2012-03-08

    申请号：US13321417

    申请日：2010-05-11

    申请人： Gabriele Gralla ,  Ralf Pelzer ,  Klaus Ebel ,  Ulrich Griesbach ,  Jörg Botzem

    发明人： Gabriele Gralla ,  Ralf Pelzer ,  Klaus Ebel ,  Ulrich Griesbach ,  Jörg Botzem

    IPC分类号： C07D309/10

    CPC分类号： C07D309/12

    摘要： The present invention relates to a process for the preparation of 2-substituted 4-hydroxy-4-methyltetrahydropyranols by reacting 3-methylbut-3-en-1-ol (isoprenol) with the corresponding aldehydes in the presence of a strongly acidic cation exchanger. Specifically, the present invention relates to a corresponding process for the preparation of 2-isobutyl-4-hydroxy-4-methyltetrahydropyran by reacting isoprenol with isovaleraldehyde.

    摘要翻译： 本发明涉及通过使3-甲基丁-3-烯-1-醇（异戊二烯）与相应的醛在强酸性阳离子交换剂存在下反应制备2-取代的4-羟基-4-甲基四氢吡喃醇的方法 。 具体地说，本发明涉及通过异戊二烯与异戊醛反应制备2-异丁基-4-羟基-4-甲基四氢吡喃的相应方法。