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152 条记录 (耗时 0.02 秒)

    Preparation of N-aryloxazolidine-2,4-diones
    71.
    发明授权
    Preparation of N-aryloxazolidine-2,4-diones 失效
    N-芳基恶唑烷-2,4-二酮的制备

    公开(公告)号：US4294971A

    公开(公告)日：1981-10-13

    申请号：US127759

    申请日：1980-03-06

    申请人： Franz Merger ,  Friedrich Towae

    发明人： Franz Merger ,  Friedrich Towae

    IPC分类号： B01J23/00 ,  C07B61/00 ,  C07D263/44 ,  C07D263/52 ,  C07D263/04

    CPC分类号： C07D263/44

    摘要： N-Aryloxazolidine-2,4-diones are prepared by reacting a nitrobenzene with a 2-hydroxycarboxylic acid ester and carbon monoxide in the presence of selenium and a basic compound under super-atmospheric pressure and at an elevated temperature.The N-aryloxazolidine-2,4-diones of the formula I, obtainable by the process of the invention are valuable active ingredients and starting materials for the preparation of crop protection agents, dyes and drugs.

    摘要翻译： 通过在超大气压和升高的温度下，在硒和碱性化合物的存在下，使硝基苯与2-羟基羧酸酯和一氧化碳反应来制备N-芳基恶唑烷-2,4-二酮。 通过本发明的方法获得的式I的N-芳基恶唑烷-2,4-二酮是用于制备作物保护剂，染料和药物的有价值的活性成分和起始材料。

    Process for the preparation of an aryl mono-, di-, and/or polyurethane
    72.
    发明授权
    Process for the preparation of an aryl mono-, di-, and/or polyurethane 失效
    芳基单 - ，二 - 和/或聚氨酯的制备方法

    公开(公告)号：US4278805A

    公开(公告)日：1981-07-14

    申请号：US135246

    申请日：1980-03-31

    申请人： Franz Merger ,  Friedrich Towae

    发明人： Franz Merger ,  Friedrich Towae

    IPC分类号： C08G18/70 ,  C07C125/07 ,  C07C125/063 ,  C07C125/077

    CPC分类号： C08G18/701

    摘要： A process for the preparation of an aryl-mono and/or polyurethane comprising the steps ofA. reacting a primary aromatic mono, di-, and/or polyamine with an O-alkyl carbamate in the presence of alcohol and catalysts, andB. separating the ammonia and other by-products from the aliphatic and/or cycloaliphatic di- and/or polyurethane.The reaction is preferably carried out in the presence of urea. The aryl mono-, di-, and/or polyurethanes produced are valuable end and intermediate products. They can be transferred into the corresponding isocyanates which can then be used for the preparation of polyurethanes.

    摘要翻译： 一种制备芳基单和/或聚氨酯的方法，包括以下步骤：在醇和催化剂存在下，使伯芳基单，二胺和/或多胺与氨基甲酸O-烷基酯反应。 从脂族和/或脂环族二酯和/或聚氨酯中分离氨和其它副产物。 反应优选在尿素存在下进行。 所生产的芳基单，二和/或聚氨酯是有价值的终端和中间产物。 它们可以转移到相应的异氰酸酯中，然后可以将其用于制备聚氨酯。

    Preparation of 2-substituted but-2-ene-1,4-dial-4-acetals and novel hemiacetals of glyoxal monoacetals
    75.
    发明授权
    Preparation of 2-substituted but-2-ene-1,4-dial-4-acetals and novel hemiacetals of glyoxal monoacetals 失效
    2-取代的丁-2-烯-1,4-表面-4-缩醛的制备和乙二醛单缩醛的新半缩醛

    公开(公告)号：US5576449A

    公开(公告)日：1996-11-19

    申请号：US314955

    申请日：1994-09-29

    申请人： J urgen Frank ,  Johann-Peter Melder ,  Franz Merger ,  Tom Witzel

    发明人： J urgen Frank ,  Johann-Peter Melder ,  Franz Merger ,  Tom Witzel

    IPC分类号： C07D319/06

    CPC分类号： C07D319/06

    摘要： The preparation of 2-substituted but-2-ene-1,4-dial-4-acetals of the formula I ##STR1## in which the substituents R.sup.1 to R.sup.4 stand for hydrogen or C.sub.1 -C.sub.6 aliphatic radicals, and R.sup.2 and R.sup.3 or R.sup.1 and R.sup.2 are in each case common members of an aliphatic 4-membered to 7-membered ring, which can contain a hetero atom, and R.sup.5 denotes an alkyl, alkenyl, or alkynyl radical having from 1 to 12 C atoms, which can be substituted by cycloaliphatic, aromatic or heterocyclic radicals or by hydroxy, ether, thioether, acyl, alkylamino, carboxy, or carbalkoxy groups, an optionally substituted aryl radical or an alkoxy, alkylthio, or acyloxy group, whereina) glyoxal is caused to react with a 1,3-propanediol of the formula II ##STR2## in aqueous solution in the presence of an acid to form a monoacetal of the formula III ##STR3## is neutralized, and if necessary the components more readily volatile than the monoacetal III are distilled off,b) the monoacetal III obtained is caused to react with an aldehyde R.sup.5 CH.sub.2 --CHO in the presence of from 0.01 to 10 mol %, based on glyoxal, of a catalyst mixture of a secondary amine and an acid to form an aldol of the formula IV ##STR4## the components which are more volatile than the aldol IV being distilled off if necessary, andc) the aldol IV is dehydrated in the presence of a water-eliminating agent to form the product I,and novel hemiacetals of glyoxal monoacetals.

    摘要翻译： 制备其中取代基R 1至R 4代表氢或C 1 -C 6脂族基团的式I I 2的2-取代的丁-2-烯-1,4-二甲氧基-4-缩醛，以及R 2和R 3 或者R 1和R 2各自为可以含有杂原子的脂肪族4元〜7元环的共同成员，R 5表示具有1〜12个C原子的烷基，烯基或炔基，其可以 被脂环族，芳族或杂环基取代，或被羟基，醚，硫醚，酰基，烷基氨基，羧基或烷氧基取代，任选取代的芳基或烷氧基，烷硫基或酰氧基，其中a）使乙二醛反应 与式II II的1,3-丙二醇在酸存在下在水溶液中形成式III的单缩醛中和，如果需要，组分比单缩醛更容易挥发 III蒸馏掉，b）使获得的单缩醛III与醛反应 在基于乙二醛的0.01至10mol％的存在下，将仲胺和酸的催化剂混合物形成式IV的醛醇，得到更具挥发性的组分 如果需要，醛醇IV被蒸馏，和c）醛醇IV在除水剂存在下脱水以形成产物I，和乙二醛单缩醛的新型半缩醛。

    Preparaion of 3.cyano-3,5,5-trimethylcyclohexanone
    76.
    发明授权
    Preparaion of 3.cyano-3,5,5-trimethylcyclohexanone 失效
    3.氰基-3,5,5-三甲基环己酮的制备

    公开(公告)号：US5516928A

    公开(公告)日：1996-05-14

    申请号：US395322

    申请日：1995-02-28

    申请人： Klaus Mundinger ,  Gerhard Laqua ,  Tom Witzel ,  Franz Merger

    发明人： Klaus Mundinger ,  Gerhard Laqua ,  Tom Witzel ,  Franz Merger

    IPC分类号： C07C253/10 ,  C07C255/46

    CPC分类号： C07C253/10 ,  C07C2101/14

    摘要： A process for the preparation of 3-cyano-3,5,5-trimethylcyclohexanone by the reaction of isophorone with hydrogen cyanide in the presence of quaternary ammonium catalysts at temperatures ranging from 80.degree. to 180.degree. C. and pressures ranging from 0.5 to 20 bar, in which the ammonium catalysts used are salts of the general formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 denote C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl, C.sub.7 -C.sub.18 aralkyl or C.sub.2 -C.sub.18 hydroxyalkyl andX denotes HCO.sub.3 or ##STR2## with the proviso that R.sup.4 stands for C.sub.1 -C.sub.8 alkyl when X is ##STR3##

    摘要翻译： 在季铵催化剂存在下，通过异佛尔酮与氰化氢反应制备3-氰基-3,5,5-三甲基环己酮的方法，温度范围为80-180℃，压力范围为0.5-20 其中使用的铵催化剂是通式I的盐，其中R 1，R 2，R 3，R 4表示C 1 -C 18烷基，C 5 -C 8环烷基，芳基，C 7 -C 18芳烷基或C 2-8芳烷基， C18羟烷基，X表示HCO3或者“IMAGE”，条件是当X为时，R4代表C1-C8烷基，

    Preparation of neopentyl glycol hydroxypivalate
    78.
    发明授权
    Preparation of neopentyl glycol hydroxypivalate 失效
    新戊二醇羟基新戊酸酯的制备

    公开(公告)号：US5380919A

    公开(公告)日：1995-01-10

    申请号：US32025

    申请日：1993-03-16

    申请人： Franz Merger ,  Martin Schmidt-Radde

    发明人： Franz Merger ,  Martin Schmidt-Radde

    IPC分类号： B01J23/04 ,  C07B61/00 ,  C07C67/44 ,  C07C69/675

    CPC分类号： C07C67/44

    摘要： A process for preparing neopentyl glycol hydroxypivalate by base-catalyzed disproportionation of hydroxypivalaldehyde, wherein the reaction is carried out in the presence of a readily water-soluble alkaline earth metal salt and of an alkali metal hydroxide.

    摘要翻译： 通过羟基新戊醛的碱催化歧化制备新戊二醇羟基新戊酸的方法，其中反应在容易水溶性的碱土金属盐和碱金属氢氧化物的存在下进行。

    Selective preparation of linear pentane-1,5-diamines in increased yields
    79.
    发明授权
    Selective preparation of linear pentane-1,5-diamines in increased yields 失效
    线性戊烷-1,5-二胺的选择性制备

    公开(公告)号：US5344983A

    公开(公告)日：1994-09-06

    申请号：US936084

    申请日：1992-08-26

    申请人： Tom Witzel ,  Eberhard Fuchs ,  Franz Merger ,  Claus-Ulrich Priester

    发明人： Tom Witzel ,  Eberhard Fuchs ,  Franz Merger ,  Claus-Ulrich Priester

    IPC分类号： B01J23/40 ,  B01J23/755 ,  B01J27/10 ,  B01J27/125 ,  B01J27/18 ,  C07B61/00 ,  C07C209/48 ,  C07C211/09 ,  C07C209/00

    CPC分类号： C07C209/48

    摘要： Process for preparing a pentane-1,5-diamine of the formula ##STR1## where R.sup.1 represents a variety of organic radicals including alkyl which can bear substituents such as hydroxyl, halogen, alkoxy, carbalkoxy, carboxyl, alkylamino, cycloalkyl or aryl, andR.sup.2 and R.sup.3 independently of one another, represent hydrogen or have the same meanings as R.sup.1 or together are a C.sub.4 -C.sub.7 -alkylene chain which is unsubstituted or substituted by one to five C.sub.1 -C.sub.4 -alkyl groups,which comprises:(a) reacting a .gamma.-cyanoketone of the formula ##STR2## where R.sup.1, R.sup.2 and R.sup.3 have the meanings given above, with excess ammonia in a first reaction space on an acidic heterogeneous catalyst at 20.degree.-150.degree. C. and 15-500 bar, and(b) hydrogenating the resulting reaction product in a second separate reaction space in the presence of excess ammonia on a cobalt, nickel or noble metal catalyst at 50.degree.-180.degree. C. and 30-500 bar.Novel pentane-1,5-diamines are obtained, in which R.sup.1 must contain at least two carbon atoms if R.sup.2 and R.sup.3 are both hydrogen. These new compounds containing two primary amine groups possess advantageous properties of lower volatility and also greater asymmetry (with different reactivity of the two amine functions). They provide useful curing agents for epoxides and act as improved components of polyamides.

    摘要翻译： 制备式（I）的戊烷-1,5-二胺的方法，其中R 1表示各种有机基团，包括可以带有取代基的烷基，例如羟基，卤素，烷氧基，烷氧基，羧基，烷基氨基，环烷基或 芳基和R 2和R 3彼此独立地表示氢或具有与R 1相同的含义或一起是未被取代或被一至五个C 1 -C 4 - 烷基取代的C 4 -C 7亚烷基链，其包含：（ a）在20-150℃的酸性非均相催化剂的第一反应空间中使具有上述含义的式（Ia）的式（II）的γ-氰基酮与过量的氨反应，其中R1，R2和R3具有上述含义， 15-500巴，（b）在钴，镍或贵金属催化剂的存在下，在50-180℃和30-500巴下，在第二分开的反应空间中，使得到的反应产物氢化。 得到新的戊烷-1,5-二胺，如果R2和R3都是氢，其中R1必须含有至少两个碳原子。 这些含有两个伯胺基团的新化合物具有较低的挥发性和更大的不对称性（两种胺官能团的不同反应性）的有利特性。 它们为环氧化物提供有用的固化剂，并且作为聚酰胺的改进组分。