METHOD FOR PREPARATION OF KETOXIME COMPOUND AND METHOD FOR PREPARATION OF ALKOXY-AMINE HYDROCHLORIDE
    41.
    发明公开

    公开(公告)号:EP2697192A1

    公开(公告)日:2014-02-19

    申请号:EP11869193.0

    申请日:2011-08-11

    IPC分类号: C07C249/04 C07C239/20

    摘要: The present invention relates a method for preparation of ketoxime compound, comprising: feeding a ketone compound, hydrogen peroxide, water, and ammonia into a reactor for contact reaction under the conditions of oximation reaction of ketone and ammonia, in the presence of a titanium-silicon molecular sieve catalyst, wherein, the molar ratio of the hydrogen peroxide to the ketone compound is 0.1 or more and less than 1. The present invention also relates to method for preparation of alkoxy-amine hydrochloride, comprising the following steps: preparing ketoxime compound by using the method for preparation of ketoxime compound described above, preparing ketoxime ether compound from the ketoxime compound, and then feeding the ketoxime ether compound and hydrochloric acid solution respectively into a rectification tower continuously for catalytic distillation, and separating alkoxy-amine hydrochloride from the liquid of the tower bottom of the rectification tower. In the method for preparation of ketoxime compound provided in the present invention, the titanium-silicon molecular sieve catalyst has a long useful life; using the method for preparation of alkoxy-amine hydrochloride provided in the present invention, the target product can be obtained at high purity and high yield.

    PROCESSES FOR PRODUCTION OF ALPHA-AMINOOXYKETONES AND ALPHA-HYDROXYKETONES
    47.
    发明公开
    PROCESSES FOR PRODUCTION OF ALPHA-AMINOOXYKETONES AND ALPHA-HYDROXYKETONES 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON ALPHA-AMINOOXYKETONEN UND ALPHA-HYDROXYKETONEN

    公开(公告)号:EP1717221A1

    公开(公告)日:2006-11-02

    申请号:EP05710165.1

    申请日:2005-02-14

    发明人: SAITO, Susumu

    摘要: The present invention is to provide a method for easily obtaining α-aminooxyketone compound which is a synthetic equivalent for monosaccharide and pentoses, and a equivalent of α-hydroxyketone compound that can be synthetic intermediates of various physiologically active materials, in high yield; to pave the way for the synthesis of monosaccharide and furthermore of oligosaccharide from the resulting α-hydroxyketone compound induced from α-aminooxyketone compound; and to open new possibilities for the synthesis of various sugar medicines such as anticancer agents, antithrombogenic agents, anti-HIV agents, inhibitors of cholesterol synthesis, verotoxin neutralizing agents. According to the invention, a carbonyl compound is allowed to react with a nitroso compound to produce an α-aminooxyketone compound using a catalyst containing a heterocyclic compound shown in the general formula (I) (wherein X1, X2 and X3 independently represent nitrogen, carbon, oxygen or sulfur; and Z represents a substituted or unsubstituted 5-to 10-membered ring).

    摘要翻译: 本发明提供一种容易获得作为单糖和戊糖的合成当量的± - 氨基氧基酮化合物的方法,以及可以高收率地作为各种生理活性物质的合成中间体的当量的± - 羟基酮化合物; 为从n-氨基氧基酮化合物诱导的所得± - 羟基酮化合物合成单糖和低聚糖铺平道路; 并开辟合成各种糖药物,如抗癌药,抗血栓形成剂,抗HIV药物,胆固醇合成抑制剂,维生素中和剂等的新可能。 根据本发明,使用含有通式(I)所示的杂环化合物的催化剂(其中X1,X2和X3独立地表示氮,碳),使羰基化合物与亚硝基化合物反应,生成± - 氨基氧基酮化合物 ,氧或硫; Z表示取代或未取代的5至10元环)。

    PROCESS FOR PRODUCTION OF O-SUBSTITUTED HYDROXYLAMINES
    49.
    发明公开
    PROCESS FOR PRODUCTION OF O-SUBSTITUTED HYDROXYLAMINES 审中-公开
    VERFAHREN ZUR HERSTELLUNG O-SUBSTITUIERTER羟氯苯胺

    公开(公告)号:EP1661884A1

    公开(公告)日:2006-05-31

    申请号:EP03818543.5

    申请日:2003-08-29

    IPC分类号: C07C239/20

    CPC分类号: C07C239/20 C07C239/22

    摘要: [Purpose]
    The purpose of the present invention is to provide a method for the production of O-substituted hydroxylamine compounds at a high yield by using industrially available starting material.
    [Solution method]
    Method for the production of O-substituted hydroxylamine compounds comprising a process of obtaining O-substituted hydroxylamine disulfonic acid alkali metal salts by reacting hydroxylamine disulfonic acid alkali metal salts with halides exemplified by alkylating agents (RX), and a process of hydrogenating the obtained O-substituted hydroxylamine disulfonic acid alkali metal salt.

    摘要翻译: [目的]本发明的目的是提供通过使用工业上可得到的原料以高产率制备O-取代的羟胺化合物的方法。 [溶液法]制备O-取代羟胺化合物的方法,包括通过使羟胺二磺酸碱金属盐与由烷基化剂(RX)例示的卤化物反应获得O-取代的羟胺二磺酸碱金属盐的方法,以及 氢化所得O-取代的羟胺二磺酸碱金属盐。