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19 条记录 (耗时 0.013 秒)

    Preparation of N-substituted cyclic amines
    2.
    发明授权
    Preparation of N-substituted cyclic amines 失效
    N-取代的环胺的制备

    公开(公告)号：US4910304A

    公开(公告)日：1990-03-20

    申请号：US331942

    申请日：1989-03-31

    申请人： Roman Fischer ,  Herbert Mueller ,  Dieter Voges

    发明人： Roman Fischer ,  Herbert Mueller ,  Dieter Voges

    IPC分类号： B01J23/78 ,  C07D295/023

    CPC分类号： B01J23/78 ,  C07D295/023 ,  Y02P20/582

    摘要： N-substituted cyclic amines of the general formula I ##STR1## where A is an alkylene group or a --(CH.sub.2).sub.n --[--O--(CH.sub.2).sub.m ].sub.r group which may be monosubstituted or polysubstituted by radicals R without the radicals R in a defined compound having to be identical, R is alkyl, alkoxyalkyl, unsubstituted or alkyl-substituted or alkoxy-substituted cycloalkyl, cycloalkylalkyl, aryl or arylalkyl, n and m independently of one another are each from 2 to 8 and r is from 1 to 3, the --(CH.sub.2).sub.n --[O--(CH.sub.2).sub.m ].sub.r group consisting of from 5 to 12 members, are prepared by reacting a primary amine of the general formula IIR--NH.sub.2 (II)with a diol of the general formula IIIHO--A--OH (III)where R and A have the abovementioned meanings, and hydrogen in the presence of a copper-containing hydrogenation/dehydrogenation catalyst at elevated temperatures and under superatmospheric pressure, by a process in which the reaction is carried out in the presence of a catalytic amount of a basic alkali metal compound or alkaline earth metal compound.

    摘要翻译： 其中A是亚烷基或 - （CH 2）n - [ - O-（CH 2）m] r基团，其可以被未经取代的基团R单取代或多取代， 定义化合物中的基团R必须相同，R是烷基，烷氧基烷基，未取代的或烷基取代的或烷氧基取代的环烷基，环烷基烷基，芳基或芳基烷基，n和m彼此独立地为2-8，r为 通过使通式II R-NH 2（II）的伯胺与式（Ⅳ）所示的式（Ⅳ）化合物与 其中R和A具有上述含义的通式III HO-A-OH（III）的二醇和在含铜氢化/脱氢催化剂存在下在升高的温度和超大气压下的氢，通过其中 反应在催化量的碱金属碱金属化合物或碱性碱存在下进行 h金属化合物。

    Production of high molecular weight .alpha.,.beta.-unsaturated aldehydes
    3.
    发明授权
    Production of high molecular weight .alpha.,.beta.-unsaturated aldehydes 失效
    生产高分子量{60，{62-不饱和醛

    公开(公告)号：US4021411A

    公开(公告)日：1977-05-03

    申请号：US583637

    申请日：1975-06-04

    申请人： Norbert Goetz ,  Roman Fischer

    发明人： Norbert Goetz ,  Roman Fischer

    IPC分类号： C07C45/70 ,  C07C45/71 ,  C07C47/20

    CPC分类号： C07C45/71 ,  C07C45/70

    摘要： A process for the production of high molecular weight .alpha.,.beta.-unsaturated aldehydes by alkylation of the .gamma.-carbon atom of a lower molecular weight .alpha.,.beta.-unsaturated aldehyde with a substituted allyl alcohol which has a chain branching in the 4-position carbon atom or a phenyl radical in the 4-position or of a corresponding allyl alcohol carboxylic ester at elevated temperature in the liquid phase.The products are valuable intermediates for the production of natural substances and odorants.

    摘要翻译： 通过用较低分子量的α，β-不饱和醛的γ-碳原子烷基化制备高分子量α，β-不饱和醛的方法，该取代的烯丙醇在4-位碳上具有支链分支 原子或4-位的苯基或相应的烯丙基醇羧酸酯在液相中升高的温度。

    Recovery of pure 2-methyl-2-hydroxy-heptanone-6
    9.
    发明授权
    Recovery of pure 2-methyl-2-hydroxy-heptanone-6 失效
    纯2-甲基-2-羟基 - 庚酮-6的回收

    公开(公告)号：US3957730A

    公开(公告)日：1976-05-18

    申请号：US506290

    申请日：1974-09-16

    申请人： Roman Fischer ,  Hermann Overwien ,  Axel Nissen

    发明人： Roman Fischer ,  Hermann Overwien ,  Axel Nissen

    IPC分类号： C07C20060101 ,  C07C49/17 ,  C07D309/04 ,  C07C45/24

    CPC分类号： C07C45/85

    摘要： A process for the recovery of pure 2-methyl-2-hydroxyheptanone-6 by conversion of impure 2-methyl-2-hydroxyheptanone-6 into 2,2,6-trimethyl 2,3-hydro-4-H-pyran by treatment with an acid which is not volatile under the reaction conditions at a temperature of from 30.degree. to 150.degree.C, purification of the 2,2,6-trimethyl-2,3-hydro-4-H-pyran thus obtained by distillation, reaction of the purified 2,2,6-trimethyl-2,3-hydro-4-H-pyran with water in the presence of an acid ion exchanger and removal of the excess water from the aqueous solution of 2-methyl-2-hydroxyheptanone-6 thus obtained by distillation. 2-methyl-2-hydroxyheptanone-6 is suitable for the production of 2-methyl-2-hydroxy-6-aminoheptane which is effective as a pharmaceutical for conditions of the heart and circulation.

    Manufacture of unsaturated ketones
    10.
    发明授权
    Manufacture of unsaturated ketones 失效
    不饱和酮的制造

    公开(公告)号：US3932462A

    公开(公告)日：1976-01-13

    申请号：US415414

    申请日：1973-11-13

    申请人： Norbert Goetz ,  Roman Fischer

    发明人： Norbert Goetz ,  Roman Fischer

    IPC分类号： C07C45/00 ,  B01J31/00 ,  C07B61/00 ,  C07C45/45 ,  C07C45/51 ,  C07C49/20 ,  C07C49/203 ,  C07C49/543 ,  C07C49/587 ,  C07C67/00 ,  C07D319/06

    CPC分类号： C07C403/02 ,  C07C403/14 ,  C07C45/513 ,  C07C45/515 ,  C07C2101/16

    摘要： Manufacture of high molecular weight unsaturated ketones by reacting allyl alcohols with 1-substituted butadiene-1-alkyl ethers or with 1-substituted butadiene-1-alkyl esters or with substances capable of forming said compounds under the conditions of the reaction, in the presence of acid catalysts at elevated temperatures and in the liquid phase. The resulting unsaturated ketones are precursors or intermediates in the manufacture of a variety of natural dyes such as zeaxanthin, rhodoxanthin and xanthophyll or of odorants such as damascones and damascenones.

    摘要翻译： 通过使烯丙醇与1-取代的丁二烯-1-烷基醚或与1-取代的丁二烯-1-烷基酯或能够在反应条件下形成所述化合物的物质在存在下反应制备高分子量不饱和酮 的酸催化剂在升高的温度和液相中。 所得的不饱和酮是制备各种天然染料如玉米黄质，红萝黄素和叶黄素或气味剂如大蠊和大马士革的前体或中间体。