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    СПОСОБ ПОЛУЧЕНИЯ 1,5-ДИНИТРОНАФТАЛИНА
    411.
    发明专利
    СПОСОБ ПОЛУЧЕНИЯ 1,5-ДИНИТРОНАФТАЛИНА 未知

    公开(公告)号：RU2352556C2

    公开(公告)日：2009-04-20

    申请号：RU2004132139

    申请日：2004-11-04

    Applicant: BAYER MATERIALSCIENCE AG

    Inventor： SHAL KHANS-PETER ,  POPKOVA VERA JAKOVLEVNA ,  LASKIN BORIS MIKHAJLOVICH ,  MALIN ALEKSANDR SERGEEVICH ,  VOLKOVA SOF JA BORISOVNA

    IPC: C07C201/08 ,  C07C201/06 ,  C07C205/06

    Abstract: Изобретениеотноситсяк способуполучения 1,5-динитронафталина, вкоторомнафталиннитруютазотнойкислотойв отсутствиесернойкислотыпритемпературеот 30°Сдо 80°С, причемазотнаякислотаимеетконцентрациюот 72 мас.%, до 87 мас.%, полученнуюреакционнуюсмесьфильтруютпритемпературеот 5°Сдо 20°Си полученныйтвердыйосадокпромываютводой, а 1,5-динитронафталинвыделяютизпромытогоосадкапромывкойацетоном. Техническийрезультат: упрощениепроцессаполучения 1,5-динитронафталина. 5 з.п.ф-лы, 1 табл.

    412.
    发明专利
    未知

    公开(公告)号：DE60133314T2

    公开(公告)日：2009-04-16

    申请号：DE60133314

    申请日：2001-12-20

    Applicant: CORNING INC

    Inventor： LETOURNEUR DIDIER ,  SORENSEN CHARLES M JR ,  WOEHL PIERRE

    IPC: B01J8/04 ,  B01J35/04 ,  B01J4/00 ,  B01J19/00 ,  B01J19/24 ,  C07B61/00 ,  C07C5/02 ,  C07C17/00 ,  C07C201/06 ,  C07C209/00

    Abstract: A method is disclosed for maintaining a volumetric gas to liquid ratio in a segmented gas/liquid flow along a reactor of monolithic catalyst beds in series. The present invention includes the steps of: initiating the segmented gas/liquid flow at a first end of the reactor by introducing feed liquid and feed gas both at a predetermined volume and a predetermined flow rate; injecting an additional amount of gas at least once into any of the spaces between catalyst beds; and combining the segments of the segmented gas/liquid flow at a second end of the reactor. The injection of gas is controlled such that the segmented gas/liquid flow can be maintained near or at the Taylor regime.

    SINTESIS DEL ACIDO 3-(5-NITROCICLOHEX-1-ENIL) ACRILICO Y SUS ESTERES.
    413.
    发明专利
    SINTESIS DEL ACIDO 3-(5-NITROCICLOHEX-1-ENIL) ACRILICO Y SUS ESTERES. 未知

    公开(公告)号：MX2009000154A

    公开(公告)日：2009-01-23

    申请号：MX2009000154

    申请日：2007-06-29

    Applicant: SCHERING CORP

    Inventor： WANG TAO ,  THIRUVENGADAM TIRUVETTIPURAM K ,  CHIU JOHN S ,  LIAO JING

    IPC: C07C201/06 ,  C07C205/55 ,  C07C251/44

    Abstract: Esta solicitud describe un procedimiento para la introducción de la funcionalidad de un grupo nitro en un compuesto que también contiene un sitio de insaturación, y/o la funcionalidad del oxígeno, mediante la oxidación directa (una etapa) de un grupo funcional oxima mediada por un complejo de peroxomolibdeno VI/VII; y el procedimiento comprende: (a) proporcionar un sustrato de la Fórmula I que contiene un grupo funcional oxima; (ver fórmula (I)) donde R1 y R2 se seleccionan independientemente de grupos alquilo lineales, ramificados o cíclicos y alquenilo lineales, ramificados o cíclicos, opcionalmente sustituidos, con la condición de que al menos uno de R1 o R2 contenga una unión carbono/carbono doble; y (b) poner en contacto el sustrato de la Fórmula I con un complejo de oxidación de molibdeno, oxidando así el grupo funcional oxima a un grupo funcional nitro para obtener la estructura de la Fórmula III (ver fórmula (III)) donde R1 y R2 son tal como se define anteriormente.

    414.
    发明专利
    未知

    公开(公告)号：FR2866334B1

    公开(公告)日：2006-05-26

    申请号：FR0401438

    申请日：2004-02-13

    Applicant: SERVIER LAB

    Inventor： SOUVIE JEAN CLAUDE ,  GONZALES BLANCO ISAAC

    IPC: C07C201/06 ,  C07B61/00 ,  C07C231/02 ,  C07C231/06 ,  C07C233/18 ,  C07C253/30 ,  C07C255/37

    Abstract: Producing 2-(7-methoxy-1-naphthyl)acetonitrile (I) comprises reacting 7-methoxy-1-tetralone (IV) with cyanoacetic acid in the presence of an organoammonium carboxylate catalyst (VI) while removing water and contacting the resulting 2-(7-methoxy-3,4-dihydro-1-naphthyl)acetonitrile (VII) with a hydrogenation catalyst in the presence of an allylic compound. Producing 2-(7-methoxy-1-naphthyl)acetonitrile of formula (I) comprises reacting 7-methoxy-1-tetralone (IV) with cyanoacetic acid in the presence of an organoammonium carboxylate catalyst of formula (VI) while removing water and contacting the resulting 2-(7-methoxy-3,4-dihydro-1-naphthyl)acetonitrile of formula (VII) with a hydrogenation catalyst in the presence of an allylic compound. R, R' = 3-10C alkyl, aryl or aryl(1-6C alkyl), where aryl is selected from phenyl, naphthyl or biphenylyl (all optionally substituted by 1-3 1-6C alkyl, OH or 1-6C alkoxy). Independent claims are also included for: (1) producing agomelatin by production of (VII) as above followed by aromatization, reduction and reaction with acetic anhydride; (2) producing agomelatin by production of (I) as above followed by reduction and reaction with acetic anhydride. [Image].

    416.
    发明专利
    未知

    公开(公告)号：DE50002428D1

    公开(公告)日：2003-07-10

    申请号：DE50002428

    申请日：2000-10-31

    Applicant: BAYER AG

    Inventor： GIERA DR ,  MEIERS DR ,  HUGGER DR

    IPC: C07B61/00 ,  C07C201/00 ,  C07C205/06 ,  C07C207/02 ,  C07C201/06 ,  C07C207/04

    Abstract: A process for the production of nitrosobenzenes comprises oxidation of the corresponding amine using hydrogen peroxide in the presence of an oxidation catalyst based on tungsten and/or molybdenum compounds at 5-25 degrees C in the absence of an organic solvent at a molar ratio of aromatic amine to hydrogen peroxide to catalyst of 1:2.0-5.0:0.001-0.05. A process for the production of nitrosobenzenes of formula (I) comprises oxidation of the corresponding amine using hydrogen peroxide in the presence of an oxidation catalyst based on tungsten and/or molybdenum compounds at 5-25 degrees C in the absence of an organic solvent at a molar ratio of aromatic amine to hydrogen peroxide to catalyst of 1:2.0-5.0:0.001-0.05. R , R = H, 1-4C alkyl or alkoxy.

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