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49 条记录 (耗时 0.026 秒)

    Process for Preparing 1,1,4,4-Tetraalkoxybut-2-Ene Derivatives
    43.
    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。

    Preparation of primary and secondary amines from nitriles
    47.
    发明授权
    Preparation of primary and secondary amines from nitriles 失效
    从腈制备伯胺和仲胺

    公开(公告)号：US06790995B2

    公开(公告)日：2004-09-14

    申请号：US10033912

    申请日：2002-01-03

    申请人： Joachim Pfeffinger ,  Michael Hüllmann ,  Arthur Höhn ,  Frank Funke ,  Frank Ohlbach ,  Till Gerlach

    发明人： Joachim Pfeffinger ,  Michael Hüllmann ,  Arthur Höhn ,  Frank Funke ,  Frank Ohlbach ,  Till Gerlach

    IPC分类号： C07C20948

    CPC分类号： C07C213/02 ,  C07C209/48 ,  C07C211/11 ,  C07C215/08

    摘要： Mixtures of primary amines of the formula (I) X—CH2—NH2  (I) and secondary amines of the formula (II) (X—CH2—)2NH  (II) where X is C1-20-alkyl, C2-20-alkenyl or C3-8-cycloalkyl which may be unsubstituted or substituted by C1-20-alkyl, C3-8-cycloalkyl, C4-20-alkylcycloalkyl, C4-20-cycloalkylalkyl, C2-20-alkoxyalkyl, C6-14-aryl, C7-20-alkylaryl, C7-20-aralkyl, C1-20-alkoxy, hydroxy, C1-20-hydroxyalkyl, amino, C1-20-alkylamino, C2-20-dialkylamino, C2-12-alkenylamino. C3-8-cycloalkylamino, arylamino, diarylamino, aryl-C1-8-alkylamino, halogen, mercapto, C2-20-alkenyloxy, C3-8-cycloalkoxy, aryloxy and/or C2-8-alkoxycarbonyl are prepared by reacting nitriles of the formula (III) X—CN  (III) with hydrogen at from 50 to 250° C. and pressures of from 5 to 350 bar in the presence of a Pd-containing catalyst comprising, based on the total weight of the catalyst, from 0.1 to 10% by weight of Pd on a support.

    摘要翻译： 式（I）的伯胺和式（II）的仲胺的混合物，其中X是可以未被取代或被C 1-20烷基取代的C 1-20 - 烷基，C 2-20 - 烯基或C 3-8 - 环烷基 ，C 3-8 - 环烷基，C 4-20 - 烷基环烷基，C 4-20 - 环烷基烷基，C 2-20烷氧基烷基，C 6-14 - 芳基，C 7-20 - 烷基芳基，C 7-20 - 芳烷基，C 1-20 - 烷氧基，羟基 ，C 1-20羟烷基，氨基，C 1-20烷基氨基，C 2-20 - 二烷基氨基，C 2-12 - 烯基氨基。 C 3-8 - 环烷基氨基，芳基氨基，二芳基氨基，芳基-C 1-8 - 烷基氨基，卤素，巯基，C 2-20 - 烯氧基，C 3-8 - 环烷氧基，芳氧基和/或C 2-8烷氧基羰基， （III）与氢气在50-250℃下反应，压力为5-350巴，在含Pd催化剂的存在下，基于催化剂的总重量计，为0.1-10重量％的Pd 在支持上。

    Selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols in the presence of a Pt/ZnO catalyst
    48.
    发明授权
    Selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols in the presence of a Pt/ZnO catalyst 失效
    在Pt / ZnO催化剂存在下，羰基化合物的选择性液相氢化得到相应的醇

    公开(公告)号：US06743956B1

    公开(公告)日：2004-06-01

    申请号：US10309255

    申请日：2002-12-04

    申请人： Mathias Haake ,  Till Gerlach ,  Frank Funke

    发明人： Mathias Haake ,  Till Gerlach ,  Frank Funke

    IPC分类号： C07C2700

    CPC分类号： C07C29/141 ,  C07C33/02

    摘要： The present invention relates to a process for selective liquid phase hydrogenation of carbonyl compounds of the general formula I, where R1 and R2 are identical or different and are each independently hydrogen or a saturated or a mono- or polyunsaturated straight-chain or branched, optionally substituted C1-C20-alkyl radical, an optionally substituted aryl radical or an optionally substituted heterocyclic group, to give the corresponding alcohols of the general formula II where R1 and R2 are each as defined above, in the presence of hydrogen and a Pt/ZnO catalyst.

    摘要翻译： 本发明涉及通式I的羰基化合物的选择性液相氢化方法，其中R 1和R 2相同或不同，并且各自独立地为氢或饱和或单或多不饱和直链， 链或支链，任选取代的C 1 -C 20烷基，任选取代的芳基或任选取代的杂环基，得到相应的通式II的醇，其中R 1和R 2各自如上所定义， 在氢气和Pt / ZnO催化剂的存在下。

    Preparation of secondary amines from nitriles
    49.
    发明授权
    Preparation of secondary amines from nitriles 失效
    从腈制备仲胺

    公开(公告)号：US06525223B2

    公开(公告)日：2003-02-25

    申请号：US10026900

    申请日：2001-12-27

    申请人： Joachim Pfeffinger ,  Michael Hüllmann ,  Arthur Höhn ,  Frank Funke ,  Frank Ohlbach ,  Till Gerlach

    发明人： Joachim Pfeffinger ,  Michael Hüllmann ,  Arthur Höhn ,  Frank Funke ,  Frank Ohlbach ,  Till Gerlach

    IPC分类号： C07C20948

    CPC分类号： C07C209/48 ,  C07C211/11

    摘要： Secondary amines of the formula (II) (X—CH2—)2NH  (II) where X is a C1-20-alkyl, C2-20-alkenyl or C3-8-cycloalkyl group which may be unsubstituted or substituted by C1-20-alkyl, C3-8-cycloalkyl, C4-20-alkylcycloalkyl, C4-20-cycoalkylalkyl, C2-20-alkoxyalkyl, C6-14-aryl, C7-20-alkylaryl, C7-20-aralkyl, C1-20-alkoxy, hydroxy, C1-20-hydroxyalkyl, amino, C1-20-alkylamino, C2-20-dialkylamino, C2-12-alkenylamino, C3-8-cycloalkylamino, arylamino, diarylamino, aryl-C1-8-alkylamino, halogen, mercapto, C2-20-alkenyloxy, C3-8-cycloalkoxy, aryloxy and/or C2-8-alkoxycarbonyl, are prepared by reacting nitriles of the formula (III) X—CN  (III) with hydrogen at from 20 to 250° C. and pressures of from 60 to 350 bar in the presence of an Rh-containing catalyst comprising from 0.1 to 5% by weight, based on the total weight of the catalyst, of Rh on a support to give mixtures of primary amines of the formula (I) X—CH2—NH2  (I) and secondary amines of the formula (II) (X—CH2—)2NH  (II) and returning at least part of the primary amines separated from the mixtures obtained to the reaction.

    摘要翻译： 式（II）的仲胺，其中X是可以是未取代的或被C 1-20 - 烷基，C 3-8 - 环烷基，C 4 -C 18环烷基，C 3-8 - C 20-20烷基烷基，C 2-20 - 烷氧基烷基，C 6-14 - 芳基，C 7-20 - 烷基芳基，C 7-20 - 芳烷基，C 1-20 - 烷氧基，羟基，C 1-20 - 羟基烷基，氨基， C 1-20 - 烷基氨基，C 2-20 - 二烷基氨基，C 2-12 - 烯基氨基，C 3-8 - 环烷基氨基，芳基氨基，二芳基氨基，芳基-C 1-8 - 烷基氨基，卤素，巯基，C 2-20 - 烯氧基， 环烷氧基，芳氧基和/或C 2-8 - 烷氧基羰基，通过在含Rh的催化剂存在下，使式（III）的腈与20至250℃的压力和60至350巴的压力反应来制备 包含基于催化剂总重量的0.1至5重量％的Rh在载体上以得到式（I）的伯胺和式（II）的仲胺的混合物，并使至少部分 从获得的混合物中分离出伯胺 反应。