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    Method of purifying vinylene carbonate
    6.
    发明授权
    Method of purifying vinylene carbonate 失效
    碳酸亚乙烯酯的净化方法

    公开(公告)号：US07999122B2

    公开(公告)日：2011-08-16

    申请号：US11920169

    申请日：2006-05-04

    申请人： Reinhard Langer ,  Paul Wagner ,  Heinrich Grzinia

    发明人： Reinhard Langer ,  Paul Wagner ,  Heinrich Grzinia

    IPC分类号： C07D317/36

    CPC分类号： C07D317/40

    摘要： The present invention relates to the industrial purification of vinylene carbonate (VC).It was found that it is advantageous to subject the VC to be purified, before the purifying distillation, to a simple thermal treatment with organic compounds which have amidic nitrogen-hydrogen bonds.

    摘要翻译： 本发明涉及碳酸亚乙烯酯（VC）的工业纯化。 发现在纯化蒸馏之前将VC纯化进行简单的热处理是有利的，所述有机化合物具有酰胺型的氢 - 氢键。

    Process for preparing dialkyl thiodiglycolates
    9.
    发明授权
    Process for preparing dialkyl thiodiglycolates 失效
    制备二硫代二甘醇二酸酯的方法

    公开(公告)号：US07642371B2

    公开(公告)日：2010-01-05

    申请号：US12336618

    申请日：2008-12-17

    申请人： Lars Rodefeld ,  Witold Broda ,  Joachim Sommer ,  Joachim Westen ,  Hartmut Richter

    发明人： Lars Rodefeld ,  Witold Broda ,  Joachim Sommer ,  Joachim Westen ,  Hartmut Richter

    IPC分类号： C07C323/22

    CPC分类号： C07C319/14 ,  C07C323/52

    摘要： A process is described for preparing alkyl thiodiglycolates of the general formula (I) R—OOC—CH2-S—CH2-COO—R  (I) where R is a radical of branched or unbranched C1 to C10-alkyl, characterized in that an alkyl haloacetate of the general formula (II) X—CH2-COO—R  (II) where X is a chlorine or bromine atom and R is as defined for compounds of the formula (I) is reacted with an aqueous solution of alkali metal sulphide or alkali metal hydrogensulphide in the presence of an aqueous pH buffer solution in the pH range between 5 and 8, optionally in the presence of a phase transfer catalyst.

    摘要翻译： 描述了制备通式（I）的R-OOC-CH 2 -S-CH 2 -COO-R（I）的烷基硫代二甘醇酸的方法，其中R是支链或非支链C1至C10-烷基的基团，其特征在于 通式（II）的卤代乙酸烷基酯其中X为氯或溴原子，R为如式（I）化合物所定义的X-CH 2 -COO-R（II））与碱金属硫化物水溶液 或碱金属硫化氢在pH范围为5至8的pH水溶液存在下，任选地在相转移催化剂存在下进行。

    PROCESS FOR PREPARING DIALKYL THIODIGLYCOLATES
    10.
    发明申请
    PROCESS FOR PREPARING DIALKYL THIODIGLYCOLATES 失效
    制备二硫代吗啉酸酯的方法

    公开(公告)号：US20090163736A1

    公开(公告)日：2009-06-25

    申请号：US12336618

    申请日：2008-12-17

    申请人： Lars Rodefeld ,  Witold Broda ,  Joachim Sommer ,  Joachim Westen ,  Hartmut Richter

    发明人： Lars Rodefeld ,  Witold Broda ,  Joachim Sommer ,  Joachim Westen ,  Hartmut Richter

    IPC分类号： C07C321/14

    CPC分类号： C07C319/14 ,  C07C323/52

    摘要： A process is described for preparing alkyl thiodiglycolates of the general formula (I) R—OOC—CH2-S—CH2-COO—R   (I) where R is a radical of branched or unbranched C1 to C10-alkyl, characterized in that an alkyl haloacetate of the general formula (II) X—CH2-COO—R   (II) where X is a chlorine or bromine atom and R is as defined for compounds of the formula (I) is reacted with an aqueous solution of alkali metal sulphide or alkali metal hydrogensulphide in the presence of an aqueous pH buffer solution in the pH range between 5 and 8, optionally in the presence of a phase transfer catalyst.

    摘要翻译： 描述了用于制备通式（I）的烷基硫代二甘醇酸酯的方法<？在线公式描述=“在线式”末端=“铅”→R-OOC-CH2-S-CH2-COO-R （I）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中R是支链或非支链C1至C10-烷基的基团，其特征在于通式 （II）<？in-line-formula description =“In-line Formulas”end =“lead”？> X-CH2-COO-R（II）<？in-line-formula description =“In-line Formulas” 末端=“尾”→其中X是氯或溴原子，R如式（I）化合物所定义）与碱金属硫化物或碱金属硫化氢的水溶液在水性pH缓冲剂 pH范围在5至8之间，任选地在相转移催化剂存在下进行。