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135 条记录 (耗时 0.024 秒)

    Preparation of 1,2,4-triazolium salts and 1,2,4-triazolines
    31.
    发明授权
    Preparation of 1,2,4-triazolium salts and 1,2,4-triazolines 失效
    1,2,4-三唑鎓盐和1,2,4-三唑啉的制备

    公开(公告)号：US5840894A

    公开(公告)日：1998-11-24

    申请号：US668140

    申请日：1996-06-21

    申请人： Regina Schneider ,  Johann-Peter Melder ,  Joaquim Henrique Teles ,  Carsten Groning ,  Klaus Ebel

    发明人： Regina Schneider ,  Johann-Peter Melder ,  Joaquim Henrique Teles ,  Carsten Groning ,  Klaus Ebel

    IPC分类号： C07D249/08 ,  C07D249/12 ,  C07D249/16

    CPC分类号： C07D249/08 ,  C07D249/12

    摘要： A process for the preparation of 1,2,4-triazolium salts Ia ##STR1## where R.sup.1, and R.sup.2 and R.sup.3 are C-organic radicals, it being possible for R.sup.2 and R.sup.3 to be connected to give a 5- to 8-membered ring, R.sup.4 is hydrogen or an organic radical and A is an equivalent of an anion, by reacting an amidrazone II ##STR2## with a carboxylic acid III R.sup.4 --COOH II or a functional derivative (IIIa) of this acid, an anion A being formed from III or IIIa which, optionally, can be replaced by another anion. The triazolium salts have great industrial importance as catalysts for the preparation of acyloine from aldehydes.

    摘要翻译： 一种制备1,2,4-三唑鎓盐的方法，其中R 1和R 2和R 3是C - 有机基团，可以将R 2和R 3连接，得到5-至8- R4是氢或有机基团，A是阴离子的当量，通过使氨基腙II Ib与羧酸III R4-COOH II或该酸的官能衍生物（IIIa）反应，阴离子 A由III或IIIa形成，任选地可以被另一个阴离子代替。 三唑鎓盐作为用于从醛制备偶剂的催化剂具有很大的工业重要性。

    Preparation of aliphatic alpha omega-aminonitriles
    32.
    发明授权
    Preparation of aliphatic alpha omega-aminonitriles 失效
    脂肪族α-ω-氨基腈的制备

    公开(公告)号：US5801268A

    公开(公告)日：1998-09-01

    申请号：US846240

    申请日：1997-04-28

    申请人： Klemens Flick ,  Johann-Peter Melder ,  Werner Schnurr ,  Klaus Ebel ,  Tom Witzel ,  Wolfgang Harder ,  Alwin Rehfinger ,  Rolf Fischer

    发明人： Klemens Flick ,  Johann-Peter Melder ,  Werner Schnurr ,  Klaus Ebel ,  Tom Witzel ,  Wolfgang Harder ,  Alwin Rehfinger ,  Rolf Fischer

    IPC分类号： B01J23/76 ,  B01J23/78 ,  B01J23/889 ,  B01J37/02 ,  C07C253/30 ,  C07C255/24 ,  C07C255/03

    CPC分类号： B01J23/76 ,  B01J23/78 ,  B01J23/8892 ,  B01J23/8898 ,  B01J37/0201 ,  C07C253/30

    摘要： Aliphatic alpha,omega-aminonitriles are prepared by partial hydrogenation of aliphatic alpha,omega-dinitriles at elevated temperatures and superatmospheric pressure in the presence of a solvent and of a catalyst by a process which comprises using a catalyst which (a) contains a compound based on a metal selected from the group consisting of nickel, cobalt, iron, ruthenium and rhodium and (b) contains from 0.01 to 25% by weight, based on (a), of a promoter based on a metal selected from the group consisting of palladium, platinum, iridium, osmium, copper, silver, gold, chromium, molybdenum, tungsten, manganese, rhenium, zinc, cadmium, lead, aluminum, tin, phosphorus, arsenic, antimony, bismuth and rare earth metals and (c) from 0 to 5% by weight, based on (a), of a compound based on an alkali metal or on an alkaline earth metal, with the proviso that the component (a) is not based on iron or iron and one of the metals selected from the group consisting of cobalt, ruthenium and rhodium when (b) is a promoter based on a metal selected from the group consisting of titanium, manganese, chromium and molybdenum, and with the further proviso that, when a compound based on only ruthenium or rhodium or ruthenium and rhodium or nickel and rhodium is selected as component (a), the promoter (b) may be dispensed with.

    摘要翻译： 脂肪族α，ω-氨基腈通过脂肪族α，ω-二腈在升高的温度和超大气压下，在溶剂和催化剂存在下通过包括使用（a）含有基于化合物的催化剂 在选自镍，钴，铁，钌和铑的金属上，和（b）含有基于（a）0.01至25重量％的基于选自以下的金属的促进剂： 钯，铂，铱，锇，铜，银，金，铬，钼，钨，锰，铼，锌，镉，铅，铝，锡，磷，砷，锑，铋和稀土金属和（c） 基于（a），基于碱金属或碱土金属的化合物为0至5重量％，条件是组分（a）不以铁或铁为基准，并且所选择的金属之一 来自由钴，钌和铑组成的组 母体（b）是基于选自钛，锰，铬和钼的金属的促进剂，进一步的条件是当仅基于钌或铑或钌和铑或镍和铑的化合物为 作为组分（a）选择，可以不用启动子（b）。

    Preparation of p-nitrophenyl-imidazoles
    33.
    发明授权
    Preparation of p-nitrophenyl-imidazoles 失效
    对硝基苯基咪唑的制备

    公开(公告)号：US5008398A

    公开(公告)日：1991-04-16

    申请号：US416027

    申请日：1989-10-02

    申请人： Hermann Koehler ,  Klaus Ebel ,  Helmut Karn ,  Christof Taubitz

    发明人： Hermann Koehler ,  Klaus Ebel ,  Helmut Karn ,  Christof Taubitz

    IPC分类号： C07D233/54 ,  C07D233/64

    CPC分类号： C07D233/64

    摘要： A process for the preparation of imidazoles which are substituted with p-nitrophenyl in the 2- and/or 4- and/or 5-position and may carry additional substituents, by reacting imidazoles which are substituted by phenyl in the 2- and/or 4- and/or 5-position and may carry additional substituents with mixtures of sulfuric acid and nitric acid, wherein the reaction is carried out in the presence of urea.

    摘要翻译： 在2-和/或4-和/或5-位上用对硝基苯取代的咪唑制备方法，可以通过在2-和/或 4-和/或5-位，并且可以用硫酸和硝酸的混合物携带另外的取代基，其中反应在尿素存在下进行。

    Process for preparing ketones, in particular macrocyclic ketones
    35.
    发明授权
    Process for preparing ketones, in particular macrocyclic ketones 有权
    制备酮的方法，特别是大环酮

    公开(公告)号：US08563781B2

    公开(公告)日：2013-10-22

    申请号：US13269016

    申请日：2011-10-07

    申请人： Michael Schelper ,  Christoph Stock ,  Klaus Ebel ,  Joaquim Henrique Teles ,  Ralf Pelzer

    发明人： Michael Schelper ,  Christoph Stock ,  Klaus Ebel ,  Joaquim Henrique Teles ,  Ralf Pelzer

    IPC分类号： C07C45/27

    CPC分类号： C07C45/28 ,  C07C45/62 ,  C07C2601/18 ,  C07C49/587 ,  C07C49/385

    摘要： Ketones of the formula II where A is optionally alkyl-substituted C2-C12-alkanediyl, R1 and R2 are each, independently of one another, C1-C6-alkyl, or R1 and R2 together form optionally alkyl-substituted C3-C10-alkanediyl, and R3 is hydrogen or C1-C6-alkyl, are prepared by reacting a cyclic olefin of the formula I with dinitrogen monoxide to form the ketone of the formula II. The ketone of the formula II can be further hydrogenated to form the saturated ketone of the formula III. Macrocyclic ketones of the formula III, e.g. muscone, are sought after as fragrances.

    摘要翻译： 式II的酮，其中A任选为烷基取代的C 2 -C 12 - 烷二基，R 1和R 2各自彼此独立地为C 1 -C 6 - 烷基，或者R 1和R 2一起形成烷基取代的C 3 -C 10 - 烷二基 R 3是氢或C 1 -C 6烷基，是通过使式I的环状烯与一氧化二氮反应形成式II的酮制备的。 式II的酮可以进一步氢化以形成式III的饱和酮。 式III的大环酮，例如 肌肉，被追捧为香水。

    METHOD FOR PRODUCING M-SUBSTITUTED PHENYLALKANOLS BY MEANS OF ISOMERIZATION
    37.
    发明申请
    METHOD FOR PRODUCING M-SUBSTITUTED PHENYLALKANOLS BY MEANS OF ISOMERIZATION 失效
    通过异构化制备M取代的苯乙醇的方法

    公开(公告)号：US20120209031A1

    公开(公告)日：2012-08-16

    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： C07C29/56 ,  C07C47/228 ,  C07C45/51

    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，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。

    PROCESS FOR PREPARING M- OR P-SUBSTITUTED PHENYLALKANOLS BY ALKYLATION
    38.
    发明申请
    PROCESS FOR PREPARING M- OR P-SUBSTITUTED PHENYLALKANOLS BY ALKYLATION 有权
    通过烷基化制备M取代或P-取代的苯基甘露醇的方法

    公开(公告)号：US20120209030A1

    公开(公告)日：2012-08-16

    申请号：US13503515

    申请日：2010-10-14

    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： C07C45/29 ,  C07C29/32

    CPC分类号： C07C29/32 ,  C07C29/56 ,  C07C45/29 ,  C07C33/20 ,  C07C47/228

    摘要： The invention relates to a process for the preparation of m- or p-substituted phenylalkanols of the formula (I) in which R1 is bonded to the phenyl ring in the m- or p-position and is C1-C5-alkyl, and R2, R3, R4 and R5, independently of one another, are hydrogen or methyl, wherein an unsubstituted phenylalkanol of the formula (II) in which R2, R3, R4 and R5 have the meanings given under formula (I) is alkylated together with a C1-C5-alkyl halide of the formula (III) R1-Hal  (III), in which R1 has the meaning given under formula (I) and Hal is halogen, in the presence of a Friedel-Crafts catalyst to give an m- or p-alkyl-substituted phenylalkanol of the formula (I), then the reaction mixture is worked-up and the desired m- or p-alkyl-substituted phenylalkanol of the formula (I) is separated off, the other formed by-products are returned to the reaction mixture and these are isomerized in the presence of a Friedel-Crafts catalyst to give the desired m- or p-alkyl-substituted phenylalkanol. From the m- or p-alkyl-substituted phenylalkanols of the formula (I), it is possible to form, by oxidation or dehydrogenation, as products of value, the corresponding aldehydes, which play an interesting role as fragrances and aroma chemicals.

    摘要翻译： 本发明涉及一种制备式（I）的间 - 或对 - 取代的苯烷醇的方法，其中R 1与m-或p-位上的苯环键合并且是C1-C5-烷基，R2 R 3，R 4和R 5彼此独立地为氢或甲基，其中R 2，R 3，R 4和R 5具有式（I）所示含义的式（II）的未取代的苯基烷醇与 其中R 1具有式（I）所示含义，Hal为卤素的式（III）R1-Hal（Ⅲ）的C1-C5烷基卤化物，在Friedel-Crafts催化剂存在下，得到m- 或式（I）的对烷基取代的苯基链烷醇，然后将反应混合物处理并分离所需的式（I）的间 - 或对 - 烷基取代的苯基烷醇，另一个形成的副产物 返回到反应混合物中，并将它们在Friedel-Crafts催化剂存在下异构化，得到所需的间 - 或对 - 烷基取代的苯基 kanol 从式（I）的间 - 或对 - 烷基取代的苯烷醇，可以通过氧化或脱氢形成作为有价值的产物，相应的醛作为香料和香气化学品起着重要的作用。