Method for producing alcoxylated carbonyl compounds by an anodic oxidation method using a cathodic coupled reaction for organic synthesis

    公开(公告)号:US06822124B2

    公开(公告)日:2004-11-23

    申请号:US10432249

    申请日:2003-05-22

    IPC分类号: C07C4702

    CPC分类号: C25B3/00

    摘要: A method for producing alcoxylated carbonyl compounds of general formula (I) (compounds I): R1aR2C(OR3)b wherein R1, R2 represent hydrogen or C1-C6-alkyl, R3 independently means C1-C6-alkyl, a is 0 or 1, b 2 or 3 with the proviso that the sum of a and b is 3, by means of anodic oxidation of germinal dialcoxy compounds of general formula (II) (compounds II) wherein R4, R5, R6, R7 represent hydrogen or C1-C6-alkyl, R5, R6 represent C1-C6-alkyl or C1-C6-alcoxy, in the presence of a C1-C6-alkyl alcohol (compounds III). A usual compound (compound IV) is used as a cathodic depolarizer suitable for electrochemical oxidation. The anodic oxidation and cathodic reduction is carried out in an undivided electrolyte cell in the presence of C1-C6-alkyl alcohols.

    Preparation of diacetals of glyoxal
    2.
    发明授权
    Preparation of diacetals of glyoxal 失效
    乙二醛二缩醛的制备

    公开(公告)号:US06713656B2

    公开(公告)日:2004-03-30

    申请号:US10262980

    申请日:2002-10-03

    IPC分类号: C07C4330

    摘要: A process is described for preparing diacetals of glyoxal by reacting from 40 to 75% by weight aqueous glyoxal with monohydric alcohols in the presence of an acid catalyst, which comprises leaving a liquid mixture which, at the beginning of the reaction, comprises alcohol and glyoxal in a molar ratio of at least 15:1 and also water in a concentration of not more than 8% by weight in contact with the acid catalyst until concentration in the reaction mixture of the diacetal formed reaches at least 70% of the equilibrium concentration without more than 5% by weight of the alcohol used having already been distilled off.

    摘要翻译: 描述了一种通过在酸催化剂的存在下使40至75重量%的乙二醛与一元醇反应来制备乙二醛的二缩醛的方法,其包括在反应开始时包含醇和乙二醛的液体混合物 至少15:1的摩尔比和与酸催化剂接触的浓度不超过8重量%的水,直到形成的二缩醛的反应混合物中的浓度达到平衡浓度的至少70%而没有 超过5%(重量)所用的醇已被蒸馏掉。

    Method for producing orthocarbonic acid trialkyl esters
    3.
    发明授权
    Method for producing orthocarbonic acid trialkyl esters 失效
    生产正碳酸三烷基酯的方法

    公开(公告)号:US07192512B2

    公开(公告)日:2007-03-20

    申请号:US10363317

    申请日:2001-09-05

    IPC分类号: C25B3/00 C25B3/02

    CPC分类号: C25B3/02

    摘要: A process is provided for the preparation of trialkyl orthocarboxylates by the electrochemical oxidation of alpha, beta-diketones or alpha, beta-hydroxyketones, the keto group being present in the form of a ketal group derived from C1- to C4-alkylalcohols and the hydroxyl group optionally being present in the form of an ether group derived from C1- to C4-alkylalcohols (ketals K), in the presence of C1- to C4-alcohols (alcohols A), the molar ratio of the ketals K to the alcohols A in the electrolyte being 0.2:1 to 10:1.

    摘要翻译: 提供了通过α,β-二酮或α,β-羟基酮的电化学氧化来制备三羧酸烷基酯的方法,酮基以衍生自C 1 -C 6烷基的缩酮形式存在, - 至C 4 - 烷基醇,并且羟基任选以衍生自C 1至C 4 - 的烷基醚的形式存在, 烷基醇(缩酮K)在C 1〜C 4的情况下(醇A)的存在下,缩酮K与醇A的摩尔比在 电解质为0.2:1至10:1。

    Fuel cell
    4.
    发明授权
    Fuel cell 失效
    燃料电池

    公开(公告)号:US06727015B1

    公开(公告)日:2004-04-27

    申请号:US09686810

    申请日:2000-10-12

    IPC分类号: H01M200

    摘要: In a fuel cell which comprises at least the following elements: a) two electrodes which are each provided with at least one gas duct for a reaction gas, b) a liquid electrolyte, the respective gas ducts of the electrodes each have at least one inlet and run perpendicular to the migration direction of the ions under load prescribed by the arrangement of the electrodes.

    摘要翻译: 在至少包括以下元件的燃料电池中:a)两个电极,每个电极设置有用于反应气体的至少一个气体管道,b)液体电解质,电极的各个气体管道各自具有至少一个入口 并且垂直于由电极布置规定的载荷下的离子迁移方向运行。

    Selective hydrolysis of acetals or ketals in the presence of phthalides
    5.
    发明授权
    Selective hydrolysis of acetals or ketals in the presence of phthalides 失效
    在苯酞中存在下缩醛或缩酮的选择性水解

    公开(公告)号:US06245945B1

    公开(公告)日:2001-06-12

    申请号:US09623059

    申请日:2000-08-25

    IPC分类号: C07C4542

    摘要: A process for the selective hydrolysis of acetals in the presence of phthalides comprises reacting a mixture (M) comprising a) a phthalide of the formula (I) where: R1,R2,R3 and R4: are independently hydrogen, C1-C4-alkyl or halogen, and b) an acetal or ketal of the formula (II) where: R5 and R6: are independently C1-C6-alkyl, C6-C10-aryl or together ethylene, and R7 and R8: are independently C1-C6-alkyl, or one radical is a hydrogen and the other is a phenyl radical where from 1 to 3 hydrogen atoms of the phenyl radical may be replaced by C1-C6-alkyl radicals or C1-C4-alkoxy radicals, or R7 and R8 are together C3-C6-alkanediyl, and a hydrogen atom may be replaced by a hydroxyl group, at from 10 to 200° C. in the presence of from 1 to 10 mol of water, based on the amount of acetal or ketal of the formula (II), to hydrolyze the acetal or ketal of the formula (II) to the corresponding aldehyde or ketone.

    摘要翻译: 在含有苯并呋喃存在下选择性水解缩醛的方法包括使包含a)式(I)的苯酞的混合物(M)反应,其中:R1,R2,R3和R4独立地是氢,C1-C4-烷基或 卤素和b)式(II)的缩醛或缩酮,其中:R 5和R 6独立地为C 1 -C 6烷基,C 6 -C 10 - 芳基或一起为乙烯,R 7和R 8独立地为C 1 -C 6烷基,或 一个基团是氢,另一个是苯基,其中苯基的1至3个氢原子可以被C 1 -C 6 - 烷基或C 1 -C 4 - 烷氧基取代,或者R 7和R 8一起是C 3 -C 6 (II)的缩醛或缩酮的量,可以在10〜200℃的存在下,在1〜10摩尔的水的存在下,用羟基代替氢原子, 以将式(II)的缩醛或缩酮水解成相应的醛或酮。

    PROCESS FOR PREPARING POROUS METAL ORGANIC FRAMEWORKS
    6.
    发明申请
    PROCESS FOR PREPARING POROUS METAL ORGANIC FRAMEWORKS 有权
    制备多孔金属有机框架的方法

    公开(公告)号:US20090171107A1

    公开(公告)日:2009-07-02

    申请号:US12300902

    申请日:2007-05-11

    IPC分类号: C07F1/08

    CPC分类号: C25B3/12

    摘要: The present invention relates to a process for preparing a porous metal organic framework comprising at least two organic compounds coordinated to at least one metal ion, which comprises the steps (a) oxidation of at least one anode comprising the metal corresponding to at least one metal ion in a reaction medium in the presence of at least one first organic compound which is an optionally substituted monocyclic, bicyclic or polycyclic saturated or unsaturated hydrocarbon in which at least two ring carbons have been replaced by heteroatoms selected from the group consisting of N, O and S to form a reaction intermediate comprising the at least one metal ion and the first organic compound; and (b) reaction of the reaction intermediate at a prescribed temperature with at least one second organic compound which coordinates to the at least one metal ion, with the second organic compound being derived from a dicarboxylic, tricarboxylic or tetracarboxylic acid.

    摘要翻译: 本发明涉及一种制备多孔金属有机骨架的方法,所述多孔金属有机骨架包括与至少一种金属离子配位的至少两种有机化合物,其包括以下步骤:(a)至少一个阳极的氧化,所述至少一个阳极包含对应于至少一种金属 在至少一种第一有机化合物存在下的反应介质中,所述第一有机化合物是任选取代的单环,双环或多环饱和或不饱和烃,其中至少两个环碳已经被选自N,O 和S形成包含所述至少一种金属离子和所述第一有机化合物的反应中间体; 和(b)将反应中间体在规定温度下与至少一种与至少一种金属离子配位的第二有机化合物反应,第二有机化合物衍生自二羧酸,三羧酸或四羧酸。

    Process for preparing porous metal organic frameworks
    9.
    发明授权
    Process for preparing porous metal organic frameworks 有权
    制备多孔金属有机骨架的方法

    公开(公告)号:US07879221B2

    公开(公告)日:2011-02-01

    申请号:US12300902

    申请日:2007-05-11

    IPC分类号: C25B3/12 C07F15/00 C07F3/00

    CPC分类号: C25B3/12

    摘要: The present invention relates to a process for preparing a porous metal organic framework comprising at least two organic compounds coordinated to at least one metal ion, which comprises the steps (a) oxidation of at least one anode comprising the metal corresponding to at least one metal ion in a reaction medium in the presence of at least one first organic compound which is an optionally substituted monocyclic, bicyclic or polycyclic saturated or unsaturated hydrocarbon in which at least two ring carbons have been replaced by heteroatoms selected from the group consisting of N, O and S to form a reaction intermediate comprising the at least one metal ion and the first organic compound; and (b) reaction of the reaction intermediate at a prescribed temperature with at least one second organic compound which coordinates to the at least one metal ion, with the second organic compound being derived from a dicarboxylic, tricarboxylic or tetracarboxylic acid.

    摘要翻译: 本发明涉及一种制备多孔金属有机骨架的方法,所述多孔金属有机骨架包括与至少一种金属离子配位的至少两种有机化合物,其包括以下步骤:(a)至少一个阳极的氧化,所述至少一个阳极包含对应于至少一种金属 在至少一种第一有机化合物存在下的反应介质中,所述第一有机化合物是任选取代的单环,双环或多环饱和或不饱和烃,其中至少两个环碳已经被选自N,O 和S形成包含所述至少一种金属离子和所述第一有机化合物的反应中间体; 和(b)将反应中间体在规定温度下与至少一种与至少一种金属离子配位的第二有机化合物反应,第二有机化合物衍生自二羧酸,三羧酸或四羧酸。