Process for preparation of alkenylphosphonic acid derivative
    1.
    发明专利
    Process for preparation of alkenylphosphonic acid derivative 审中-公开
    制备烷基磷酸衍生物的方法

    公开(公告)号:JP2005132841A

    公开(公告)日:2005-05-26

    申请号:JP2004312897

    申请日:2004-10-27

    CPC classification number: C07F9/4015

    Abstract: PROBLEM TO BE SOLVED: To provide a process for preparation of an alkenylphosphonic acid derivative free from formation of a coupling product, accepting reaction temperature below 200°C, accepting high yield more than 75%, being sufficient without use of an expensive noble metal catalyst and having improved yield and selectivity compared to conventional process.
    SOLUTION: The invention relates to the process for preparation of the alkenylphosphonic acid derivative by reacting the phosphonic acid derivative in the presence of an alkyne and a complex catalyst system, wherein the complex catalyst system comprise (a) nickel and (b) a phosphine having at least two trivalent phosphorus atoms and/or (c) a phosphine having one trivalent phosphorus atom, in which the addition of the alkyne is carried out after at least one minute of contact of the phosphonic acid derivative with the complex catalyst system.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供一种制备不形成偶合产物的烯基膦酸衍生物的方法,接受低于200℃的反应温度,接受高产率大于75%,足以不使用昂贵的 贵金属催化剂,并且与常规方法相比具有提高的产率和选择性。 解决方案:本发明涉及通过在炔烃和络合催化剂体系存在下使膦酸衍生物反应来制备烯基膦酸衍生物的方法,其中复合催化剂体系包含(a)镍和(b) 具有至少两个三价磷原子的膦和/或(c)具有一个三价磷原子的膦,其中在将膦酸衍生物与络合催化剂体系接触至少一分钟后进行炔的添加 。 版权所有(C)2005,JPO&NCIPI

    HYDROGENATION OF SACCHARIDE OR SACCHARIDE MIXTURE, AND SYNTHESIS OF VITAMIN C

    公开(公告)号:JPH11322738A

    公开(公告)日:1999-11-24

    申请号:JP9894599

    申请日:1999-04-06

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To obtain a sugar alcohol useful in a food industry, cosmetics, agents and an industrial field by hydrogenating a saccharide in the presence of a catalyst composed of a transition metal. SOLUTION: A saccharide (preferably glucose, mannose or the like) or a mixture of two or more of saccharides is brought into contact with hydrogen in the presence of a catalyst to give a sugar alcohol or a mixture of two or more of the sugar alcohols. The catalyst comprises at least one homogeneous compound of at least one transition metal of the group VIII of the periodic table or optionally the homogeneous compound and at least one homogeneous compound of at least one transition metal of the group I or group VII of the periodic table and is deposited on a carrier on-site. Preferably 0.01-30 wt.% based on the total weight of the catalyst is supported on a carrier, 5-50% pore volume of the catalyst comprises macropores having 50-10,000 nm pore diameters, 50-95 % pore volume comprises mesopores having 2-50 nm pore diameters and the sum of the pore volume is 100%.

    7.
    发明专利
    未知

    公开(公告)号:DE102004057146A1

    公开(公告)日:2006-06-01

    申请号:DE102004057146

    申请日:2004-11-26

    Applicant: BASF AG

    Abstract: A process for preparing phthaloyl chloride by reacting phthalic anhydride with a chlorinating agent (I) selected from the group of thionyl chloride and phosgene in the presence of a catalyst at a temperature of from 80 to 200° C. and a pressure of from 0.01 to 10 MPa abs, in which the catalyst (II) used is triphenylphosphine, triphenylphosphine oxide or a mixture thereof.

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