Method for etherifying a benzyl alcohol, resulting products and applications
    1.
    发明授权
    Method for etherifying a benzyl alcohol, resulting products and applications 失效
    醚化苄醇的方法,得到的产品和应用

    公开(公告)号:US06362378B1

    公开(公告)日:2002-03-26

    申请号:US09462432

    申请日:2000-03-14

    IPC分类号: C07C4109

    摘要: The present invention relates to a process for etherification of a benzyl type alcohol, to the products obtained and to their applications, in particular in the perfumery field. The etherification process of the invention consists of reacting a benzyl type alcohol with another alcohol in the presence of a catalyst, characterized in that the etherification reaction is carried out in the presence of an effective quantity of a zeolite.

    摘要翻译: 本发明涉及一种苄基醇的醚化方法,所得到的产物及其应用,特别是在香料领域中。 本发明的醚化方法包括在催化剂存在下使苄基型醇与另一种醇反应,其特征在于醚化反应在有效量的沸石存在下进行。

    Process for the condensation of a carbonyl compound with an aromatic derivative in a basic medium
    2.
    发明授权
    Process for the condensation of a carbonyl compound with an aromatic derivative in a basic medium 失效
    羰基化合物与芳族衍生物在碱性介质中缩合的方法

    公开(公告)号:US06541674B2

    公开(公告)日:2003-04-01

    申请号:US09725196

    申请日:2000-11-29

    IPC分类号: C07C3346

    摘要: A process for condensing at least one carbonyl compound carrying at least one electron-withdrawing group with an aromatic derivative carrying at least one hydroxyl functional group, wherein the electron-withdrawing group present on the carbonyl compound is selected from fluoroalkyl derivatives, esters, including orthoesters, and nitriles and said condensation is carried out in a basic medium.

    摘要翻译: 将至少一个携带至少一个吸电子基团的羰基化合物与至少含有一个羟基官能团的芳族衍生物缩合的方法,其中存在于羰基化合物上的吸电子基团选自氟烷基衍生物,酯,包括原酸酯 ,腈和所述的冷凝在基本介质中进行。

    Method for reducing a carbonyl-containing compound
    3.
    发明授权
    Method for reducing a carbonyl-containing compound 失效
    还原含羰基化合物的方法

    公开(公告)号:US06340775B1

    公开(公告)日:2002-01-22

    申请号:US09341183

    申请日:1999-10-22

    IPC分类号: C07C49403

    摘要: A subject of the present invention is a process for the reduction of a carbonyl compound. More precisely, the invention relates to a process for reduction of an aldehyde and/or of a ketone. The reduction process of the invention, which consists of reacting a carbonyl compound with an alcohol in the presence of a zeolite catalyst, is characterized by the fact that it comprises: mixing, in any manner whatever, the carbonyl compound and the alcohol, passing said mixture over a catalyst bed containing at least one zeolite, subjecting the reaction mixture leaving the catalyst bed to recirculation over the catalyst bed, for a number of times that is sufficient to obtain the desired degree of conversion of the substrate.

    摘要翻译: 本发明的主题是还原羰基化合物的方法。 更准确地说,本发明涉及还原醛和/或酮的方法。 在沸石催化剂存在下使羰基化合物与醇反应的本发明的还原方法的特征在于:其包括:以任何方式混合羰基化合物和醇,通过所述 混合物在含有至少一种沸石的催化剂床上,使离开催化剂床的反应混合物在催化剂床上再循环足够多的时间以获得所需的底物转化率。

    Method for preparing a benzylic-type ether
    4.
    发明授权
    Method for preparing a benzylic-type ether 失效
    苄型醚的制备方法

    公开(公告)号:US06608232B1

    公开(公告)日:2003-08-19

    申请号:US09869743

    申请日:2001-07-03

    IPC分类号: C07C4109

    摘要: The invention concerns a method for preparing a benzylic-type ether from an aromatic compound. The inventive method for preparing a benzylic-type ether from an aromatic compound is characterised in that it consists in: in a first step, acylating an aromatic compound by reacting said aromatic compound with an acylating agent, in the presence of an efficient amount of zeolite or a Friedel-Crafts catalyst leading to a ketonic compound; in a second step, reducing the carbonyl group into carbinol leading to a benzylic alcohol; in a third step, etherifying the hydroxyl group, by reacting the benzylic alcohol with another alcohol, in the presence of an efficient amount of zeolite.

    摘要翻译: 本发明涉及一种由芳族化合物制备苄型醚的方法。 从芳族化合物制备苄型醚的本发明方法的特征在于:在第一步中,通过使所述芳族化合物与酰化剂反应,在有效量的沸石 或通过引入酮化合物的Friedel-Crafts催化剂; 在第二步中,将羰基还原成苄醇,得到苄醇; 在第三步中,通过使苄醇与另一种醇反应,在有效量的沸石存在下,醚化羟基。

    Preparation of caprolactam
    6.
    发明授权
    Preparation of caprolactam 失效
    己内酰胺的制备

    公开(公告)号:US06204379B1

    公开(公告)日:2001-03-20

    申请号:US09269875

    申请日:1999-07-27

    IPC分类号: C07D20108

    CPC分类号: C07D201/08 Y02P20/52

    摘要: The present invention concerns the aminomethylation of pentenoic acid derivatives, by reaction with carbon monoxide, hydrogen and ammonia, for preparing caprolactam. More precisely, it is directed to a method for preparing caprolactam wherein the aminomethylation of pentenoic acid derivatives is carried out by reaction with carbon monoxide, hydrogen, and ammonia, at a temperature higher than 30° C. and in the presence of a catalyst with a base of at least one metal of Group VIII of the Periodic Table.

    摘要翻译: 本发明涉及通过与一氧化碳,氢和氨的反应制备己内酰胺的戊烯酸衍生物的氨基甲基化。 更精确地,涉及一种制备己内酰胺的方法,其中戊烯酸衍生物的氨基甲基化通过与一氧化碳,氢气和氨在高于30℃的温度下反应并在催化剂存在下进行, 元素周期表第Ⅷ族至少一种金属的碱。