Preparation of an alkenylphosphonic acid derivative
    2.
    发明申请
    Preparation of an alkenylphosphonic acid derivative 审中-公开
    烯基膦酸衍生物的制备

    公开(公告)号:US20050113602A1

    公开(公告)日:2005-05-26

    申请号:US10977449

    申请日:2004-11-01

    IPC分类号: C07B61/00 C07F9/40 C07F9/22

    CPC分类号: C07F9/4015

    摘要: Process for preparing an alkenylphosphonic acid derivative by reacting a phosphonic acid derivative with an alkyne in the presence of a catalyst complex system, wherein the catalyst complex system comprises (a) nickel and (b) a phosphine having at least two trivalent phosphorus atoms and/or (c) a phosphine having one trivalent phosphorus atom and the alkyne is added only after the phosphonic acid derivative has been brought into contact with the catalyst complex system for at least one minute.

    摘要翻译: 在催化剂络合物体系存在下使膦酸衍生物与炔烃反应制备烯基膦酸衍生物的方法,其中催化剂络合物体系包含(a)镍和(b)具有至少两个三价磷原子的膦和/ 或者(c)仅在使膦酸衍生物与催化剂络合物体系接触至少1分钟后才加入具有一个三价磷原子的膦和炔烃。

    Preparation of alkenylphosphonic acid derivatives
    9.
    发明授权
    Preparation of alkenylphosphonic acid derivatives 有权
    烯基膦酸衍生物的制备

    公开(公告)号:US06534669B2

    公开(公告)日:2003-03-18

    申请号:US09985114

    申请日:2001-11-01

    IPC分类号: C07F906

    CPC分类号: C07F9/4015

    摘要: Alkenylphosphonic acid derivatives are prepared by reacting phosphonic acid derivatives with alkynes in the presence of a metal complex catalyst system comprising (a) nickel and (b) a phosphine having at least two trivalent phosphorus atoms.

    摘要翻译: 烯基膦酸衍生物通过在包含(a)镍和(b)具有至少两个三价磷原子的膦的金属络合物催化剂体系的存在下使膦酸衍生物与炔反应来制备。

    Continuous method for the production of sugar alcohols
    10.
    发明申请
    Continuous method for the production of sugar alcohols 审中-公开
    连续生产糖醇的方法

    公开(公告)号:US20060009661A1

    公开(公告)日:2006-01-12

    申请号:US10538265

    申请日:2003-12-03

    IPC分类号: C07C29/14

    摘要: A continuous process for preparing sugar alcohols by catalytic hydrogenation of an aqueous solution of a saccharide, which forms the corresponding sugar alcohol on hydrogenation, in the presence of a ruthenium catalyst which is obtainable by: i) single or multiple treatment of an amorphous silicon-dioxide-based support material with a halogen-free aqueous solution of a low-molecular-weight ruthenium compound and subsequent drying of the treated support material at below 200° C., ii) reducing the solid obtained in i) with hydrogen at from 100 to 350° C., step ii) being carried out immediately after step i), which comprises, before the hydrogenation, bringing the aqueous saccharide solution to be hydrogenated into contact with the support material.

    摘要翻译: 一种在钌催化剂存在下通过氢化形成相应的糖醇的糖水溶液的催化氢化制备糖醇的连续方法,其可以通过以下步骤获得:i)单次或多次处理非晶硅 - 二氧化物基载体材料与低分子量钌化合物的无卤素水溶液,随后将处理的载体材料在低于200℃下进行干燥,ii)在100℃下用氢气还原所得固体, 至350℃,步骤ii)在步骤i)之后立即进行,其包括在氢化之前将待氢化的糖水溶液与载体材料接触。