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    Method for producing nitrobenzene by adiabatic nitriding
    1.
    发明授权
    Method for producing nitrobenzene by adiabatic nitriding 有权
    通过绝热氮化生产硝基苯的方法

    公开(公告)号：US09284255B2

    公开(公告)日：2016-03-15

    申请号：US14413277

    申请日：2013-07-23

    申请人： Bayer MaterialScience AG

    发明人： Thomas Knauf ,  Alexandre Racoes ,  Wolfgang Dohmen ,  Antoni Mairata

    IPC分类号： C07C201/00 ,  C07C201/06 ,  C07C201/08

    CPC分类号： C07C201/06 ,  C07C201/08 ,  C07C205/06

    摘要： The invention relates to an adiabatic process for producing nitrobenzene by nitrating benzene with sulphuric acid mixtures and nitric acid mixtures using a stoichiometric excess of benzene and reusing non-reacted benzene, the content of the aliphatic organic compounds in the feed benzene being limited, by the targeted evacuation of aliphatic organic compounds to at least one step in the process, to a content of less than 1.5 mass-%, in relation to the total amount of feed benzene.

    摘要翻译： 本发明涉及通过使用化学计量过量的苯用硝酸混合物和硝酸混合物硝化苯并重新使用未反应的苯来生产硝基苯的绝热方法，所述进料苯中的脂肪族有机化合物的含量受到限制， 将脂肪族有机化合物定向排出至该步骤中的至少一个步骤，其含量相对于进料苯的总量小于1.5质量％。

    Method for producing nitrobenzene by adiabatic nitriding
    2.
    发明授权
    Method for producing nitrobenzene by adiabatic nitriding 有权
    通过绝热氮化生产硝基苯的方法

    公开(公告)号：US09260377B2

    公开(公告)日：2016-02-16

    申请号：US14415788

    申请日：2013-07-23

    申请人： Bayer MaterialScience AG

    发明人： Thomas Knauf ,  Michael Merkel ,  Antoni Mairata

    IPC分类号： C07C201/06 ,  C07C201/08

    CPC分类号： C07C201/06 ,  C07C201/08 ,  C07C205/06

    摘要： The invention provides a continuous adiabatic process for the preparation of nitrobenzene by nitrating benzene with mixtures of sulfuric and nitric acids using a stoichiometric excess of benzene, wherein the content of organic compounds in the circulating sulfuric acid, at least during the start-up period of the production plant, is always kept below 1.0 mass percent, based on the total mass of circulating sulfuric acid. This is preferably achieved by a procedure in which, either after the end or before the beginning of a production cycle, the circulating sulfuric acid is circulated at elevated temperature so that the organics contained in the sulfuric acid, preferably comprising nitrobenzene and traces of benzene, dinitrobenzene and nitrophenols, are separated off in the evaporation apparatus for concentrating the sulfuric acid.

    摘要翻译： 本发明提供了一种连续的绝热方法，用于通过使用化学计量过量的苯将硫与硝酸的混合物硝化苯来制备硝基苯，其中循环硫酸中有机化合物的含量至少在启动期间 基于循环硫酸的总质量，生产厂总是保持在1.0质量％以下。 这优选通过以下程序来实现，其中，在生产周期结束或开始之前循环硫酸在升高的温度下循环，使得包含在硫酸中的有机物，优选包含硝基苯和痕量的苯， 二硝基苯和硝基苯酚在用于浓缩硫酸的蒸发装置中分离出来。

    SYNTHESIS OF 3-(5-NITROCYCLOHEX-1-ENYL) ACRYLIC ACID AND ESTERS THEREOF
    6.
    发明申请
    SYNTHESIS OF 3-(5-NITROCYCLOHEX-1-ENYL) ACRYLIC ACID AND ESTERS THEREOF 失效
    3-（5-硝基环己基-1-环己基）丙烯酸及其酯的合成

    公开(公告)号：US20090203936A1

    公开(公告)日：2009-08-13

    申请号：US12274075

    申请日：2008-11-19

    申请人： Tiruvettipuram K. Thiruvengadam ,  Tao Wang ,  John S. Chiu ,  Jing Liao

    发明人： Tiruvettipuram K. Thiruvengadam ,  Tao Wang ,  John S. Chiu ,  Jing Liao

    IPC分类号： C07C51/16

    CPC分类号： C07C251/44 ,  C07C201/06 ,  C07C249/08 ,  C07C2601/16 ,  C07C205/56 ,  C07C251/42

    摘要： This application discloses provides a process for the introduction of nitro-group functionality into a compound which contains also a site of unsaturation and/or oxygen functionality by direct (one step) oxidation of an oxime functional group mediated by a molybdenum VI/VII peroxo complex, the process comprising: (a) providing a substrate of Formula I containing an oxime functional group; wherein R1 and R2 are selected independently from linear, branched or cyclic alkyl and linear, branched or cyclic alkenyl groups, optionally substituted, with the proviso that at least one of R1 or R2 contains a carbon/carbon double bond; and (b) contacting said substrate of Formula I with a molybdenum oxidation complex, thereby oxidizing said oxime functional group to a nitro functional group to yield the structure of Formula III. Where R1 and R2 are as defined above.

    摘要翻译： 本申请公开提供了一种通过由钼VI / VII过氧配合物介导的肟官能团的直接（一步）氧化将硝基官能团引入到还含有不饱和位和/或氧官能团位点的化合物的方法 该方法包括：（a）提供含有肟官能团的式I的底物; 其中R 1和R 2独立地选自直链，支链或环状的烷基和直链，支链或环状烯基，任选被取代，条件是R 1或R 2中的至少一个含有碳/碳双键; 和（b）使式I的底物与钼氧化络合物接触，从而将所述肟官能团氧化为硝基官能团，得到式III的结构。 其中R1和R2如上所定义。