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    INTEGRATED PROCESS FOR THE MANUFACTURE OF ALKENYL CARBOXYLATES
    31.
    发明申请
    INTEGRATED PROCESS FOR THE MANUFACTURE OF ALKENYL CARBOXYLATES 审中-公开
    用于制备羧酸亚烷基酯的综合方法

    公开(公告)号：WO03055838A8

    公开(公告)日：2003-09-18

    申请号：PCT/GB0205455

    申请日：2002-12-04

    申请人： BP CHEM INT LTD ,  CLARKE ROBERT WILLIAM ,  ROBERTS MARK STEPHEN

    发明人： CLARKE ROBERT WILLIAM ,  ROBERTS MARK STEPHEN

    IPC分类号： C07C67/05 ,  C07B61/00 ,  C07C51/215 ,  C07C53/08 ,  C07C67/00 ,  C07C67/54 ,  C07C69/01 ,  C07C69/15

    CPC分类号： C07C67/54 ,  C07C5/48 ,  C07C51/215 ,  C07C51/46 ,  C07C67/055 ,  Y02P20/125 ,  Y02P20/582 ,  C07C69/15 ,  C07C53/08 ,  C07C11/04

    摘要： An integrated process for the production of an alkenyl carboxylate, such as vinyl acetate which process comprises the steps of (a) contacting in an oxidation reaction zone a C2 to C4 alkane, such as ethane, a molecular oxygen-containing gas, optionally the corresponding alkene and optionally water, in the presence of a catalyst to produce a stream comprising alkene, carboxylic acid and water; (b) separating at least a portion of the stream from step (a) into a fraction comprising the alkene and a fraction comprising the carboxylic acid and water; (c) contacting in a second reaction zone at least a portion of said alkene fraction produced in step (b), a carboxylic acid and a molecular oxygen-containing gas, in the presence of a catalyst to produce a product stream comprising an alkenyl carboxylate, water and carboxylic acid; (d) separating at least a portion of the product stream from step (c) and at least a portion of the carboxylic acid and water fraction produced in step (b) by azeotropic distillation into an overhead fraction comprising the alkenyl carboxylate and a base fraction comprising the carboxylic acid; (e) recovering the alkenyl carboxylate from the overhead fraction separated in step (d).

    摘要翻译： 一种用于生产烯基羧酸酯如乙酸乙烯酯的整合方法，其方法包括以下步骤：（a）在氧化反应区中使C2至C4烷烃如乙烷，含分子氧的气体，任选相应的 烯烃和任选的水，在催化剂的存在下，产生包含烯烃，羧酸和水的流; （b）将来自步骤（a）的物流的至少一部分分离成包含烯烃的馏分和包含羧酸和水的级分; （c）在第二反应区中在催化剂存在下使步骤（b）中产生的所述烯烃馏分的至少一部分与羧酸和含分子氧的气体接触以产生包含链烯基羧酸酯的产物流 ，水和羧酸; （d）通过共沸蒸馏将步骤（c）中的产物流的至少一部分和步骤（b）中产生的羧酸和水部分的至少一部分分离成包含烯基羧酸酯和碱部分的塔顶馏分 包含羧酸; （e）从步骤（d）中分离的塔顶馏分回收烯基羧酸酯。

    MANUFACTURE OF TRIMETHYLHYDROQUINONE DIACYLATES
    32.
    发明申请
    MANUFACTURE OF TRIMETHYLHYDROQUINONE DIACYLATES 审中-公开
    三羟甲基柠檬酸二乙酯的制备

    公开(公告)号：WO2003051812A1

    公开(公告)日：2003-06-26

    申请号：PCT/EP2002/013890

    申请日：2002-12-07

    申请人： ROCHE VITAMINS AG ,  BONRATH, Werner ,  SCHNEIDER, Michael

    发明人： BONRATH, Werner ,  SCHNEIDER, Michael

    IPC分类号： C07C67/00

    CPC分类号： C07C67/00 ,  C07C69/017 ,  C07C69/16

    摘要： A process for the manufacture of a 2,3,5-trimethylhydroquinone diacylate comprising reacting ketoisophorone with an acylating agent in the presence of a NH- or CH-acidic catalyst, particularly certain bis (perfluorinated hydrocarbyl sulphonyl) imides and metal salts thereof and, respectively, certain tris (perfluoroalkanesulphonyl or pentafluorobenzenesulphonyl) methanes and metal salts thereof. The acylating agent is particularly an acid anhydride, an acyl halide or an enol ester. The so-obtained 2,3,5-trimethylhydroquinone diacylate can be converted into (all-rac)-α-tocopherol by transesterification to yield 2,3,5-trimethylhydroquinone and reaction of the latter with isophytol. (all-rac)-α-Tocopherol itself is the most active member of the vitamin E group.

    摘要翻译： 包括制备2,3,5-三甲基氢醌二酸酯的方法，其包括在NH-或CH-酸性催化剂，特别是某些双（全氟化烃基磺酰基）酰亚胺及其金属盐存在下使酮异二氢酮与酰化剂反应， 分别为某些三（全氟烷基磺酰基或五氟苯磺酰基）甲烷及其金属盐。 酰化剂特别是酸酐，酰基卤或烯醇酯。 如此得到的2,3,5-三甲基氢醌二酸酯可以通过酯交换反应转化成（全脱氨基）-α-生育酚，得到2,3,5-三甲基氢醌，后者与异麦芽糖醇反应。 （全消旋） - α-生育酚本身是维生素E组中最活跃的成员。

    PROCESS FOR THE PREPARATION OF 3-ARYL-2-HYDROXY PROPANOIC ACID DERIVATIVES
    33.
    发明申请
    PROCESS FOR THE PREPARATION OF 3-ARYL-2-HYDROXY PROPANOIC ACID DERIVATIVES 审中-公开
    制备3-芳基-2-羟基丙酸衍生物的方法

    公开(公告)号：WO02024625A3

    公开(公告)日：2002-06-27

    申请号：PCT/IB2001/001699

    申请日：2001-09-17

    IPC分类号： C07C67/00 ,  C07C67/10 ,  C07C67/11 ,  C07C69/734

    CPC分类号： C07C67/10 ,  C07C67/00 ,  C07C67/11 ,  C07C69/734

    摘要： The present invention relates to an improved process for the preparation of 3-aryl-2-hydroxy propanoic acid derivatives of formula (1) where R represents hydrogen atom or (C1-C6)alkyl group and R represents (C1-C6)alkyl group which comprises: (i) selectively benzylating L-tyrosine to yield compound of formula (15); (ii). diazotising the compound of formula (15) to produce compound of formula (8); (iii) simultaneous etherification and esterification of compound of formula (8) to obtain crude compound of formula (9) with ee>90 %; (iv) hydrolysing the crude compound of formula (9) to produce compound of formula (9a) acid; (v) treating the compound of formula (9a) with chiral base to produce pure salt of formula (16); (vi) converting the compound of formula (16) to pure compound of formula (9a); (vii) esterifying pure compound of formula (9a) to produce pure compound of formula (9); (viii) debenzylating the compound of formula (9) to yield pure compound of formula (1).

    摘要翻译： 本发明涉及制备式（1）的3-芳基-2-羟基丙酸衍生物的改进方法，其中R 1表示氢原子或（C1-C6）烷基，R 2表示（ C1-C6）烷基，其包括：（i）选择性苄化L-酪氨酸以产生式（15）化合物; （ⅱ）。 重氮化式（15）化合物以制备式（8）化合物; （iii）式（8）化合物的同时醚化和酯化得到ee> 90％的粗制式（9）化合物; （iv）水解式（9）的粗制化合物以产生式（9a）酸的化合物; （v）用手性碱处理式（9a）化合物以制备式（16）的纯盐; （vi）将式（16）化合物转化成纯的式（9a）化合物; （vii）将纯的式（9a）化合物酯化以制备纯的式（9）化合物; （viii）使式（9）化合物脱苄酯化，得到纯的式（1）化合物。

    ETHYLENE RECOVERY SYSTEM
    36.
    发明申请
    ETHYLENE RECOVERY SYSTEM 审中-公开
    乙烯回收系统

    公开(公告)号：WO01000559A1

    公开(公告)日：2001-01-04

    申请号：PCT/US2000/016823

    申请日：2000-06-19

    IPC分类号： C07C67/00 ,  B01D53/14 ,  C07C7/11 ,  C07C67/055 ,  C07C69/15 ,  C07C11/04

    CPC分类号： C07C7/11 ,  C07C67/055 ,  C07C11/04 ,  C07C69/01 ,  C07C69/15

    摘要： Ethylene is a commodity chemical used as a reactant in the production of vinyl acetate. Ethylene is relatively expensive thus making its recovery and re-use in the process encouraged. The present invention provides a method for the recovery of ethylene from the inert gas purge stream from the reactor loop in a vapor-phase process for making vinyl acetate. The method of the present invention includes the steps of contacting the inert gas purge stream containing ethylene with acetic acid in an absorption vessel; discharging a stream containing acetic acid and ethylene from one aspect of the absorption vessel; separating the ethylene from the acetic acid in the stream by contacting the stream with ethylene gas in a scrubber column; and recovering ethylene from a top portion of the scrubber column. The method may also include the step of recycling the recovered ethylene to the reactor loop for further use.

    摘要翻译： 乙烯是在乙酸乙烯酯生产中用作反应物的商品化学品。 乙烯相对昂贵，从而使其回收和再利用得到鼓励。 本发明提供了一种在用于制备乙酸乙烯酯的气相方法中从反应器回路的惰性气体吹扫流中回收乙烯的方法。 本发明的方法包括在吸收容器中使包含乙烯的惰性气体吹扫流与乙酸接触的步骤; 从吸收容器的一个方面排出含有乙酸和乙烯的物流; 通过使该料流与洗涤塔中的乙烯气体接触，从而将乙烯与乙烯分离; 并从洗涤塔的顶部回收乙烯。 该方法还可以包括将回收的乙烯循环到反应器回路以供进一步使用的步骤。

    PROCESS FOR PRODUCING HYDROQUINONE DIESTER DERIVATIVE
    37.
    发明申请
    PROCESS FOR PRODUCING HYDROQUINONE DIESTER DERIVATIVE 审中-公开
    生产氢氯硅烷衍生物的方法

    公开(公告)号：WO00040540A1

    公开(公告)日：2000-07-13

    申请号：PCT/JP1999/007246

    申请日：1999-12-24

    IPC分类号： C07C67/00 ,  C07C67/52 ,  C07C69/017 ,  C07C69/157 ,  C07C69/16 ,  C07C69/28

    CPC分类号： C07C67/52 ,  C07C67/00 ,  C07C69/017 ,  C07C69/16

    摘要： A process which comprises subjecting a reaction mixture containing a hydroquinone diester derivative represented by formula (1) (wherein R and R are the same or different and each represents alkyl, cycloalkyl, aryl, or a heterocyclic group) to crystallisation and washing the resultant crystals. The crystallization is conducted in a solvent comprising an organic carboxylic acid and water, and the crystals are washed with warm water having a temperature of 40 DEG C or higher. In formula (1), R and R is C1-4 alkyl.

    摘要翻译： 一种方法，其包括使含有式（1）表示的氢醌二酯衍生物（其中R 1和R 2相同或不同并且各自表示烷基，环烷基，芳基或杂环基）的反应混合物 结晶并洗涤所得晶体。 结晶在包含有机羧酸和水的溶剂中进行，晶体用温度为40℃或更高的温水洗涤。 式（1）中，R 1和R 2为C 1-4烷基。

    INTERMEDIATE COMPOUNDS IN THE SYNTHESIS OF THE A RING MOIETY OF 2-SUBSTITUTED VITAMIN D DERIVATIVES
    38.
    发明申请
    INTERMEDIATE COMPOUNDS IN THE SYNTHESIS OF THE A RING MOIETY OF 2-SUBSTITUTED VITAMIN D DERIVATIVES 审中-公开
    2-取代维生素D衍生物的环环素合成中的中间体化合物

    公开(公告)号：WO99043641A1

    公开(公告)日：1999-09-02

    申请号：PCT/JP1999/000856

    申请日：1999-02-25

    IPC分类号： C07C43/178 ,  C07C43/315 ,  C07C69/734 ,  C07C41/30 ,  C07C41/48 ,  C07C67/00 ,  C07C67/333 ,  C07F7/18

    CPC分类号： C07C43/1787 ,  C07C43/315 ,  C07C69/734 ,  Y02P20/55

    摘要： Novel compounds corresponding to the A ring moiety of 2-substituted vitamin D derivatives, namely, compounds represented by general formula (1), intermediate compounds for synthesizing the above compounds and a process for producing the above compounds, wherein R , R and R are the same or different and each represents hydrogen or a protective group; and R represents lower alkyl.

    摘要翻译： 对应于2-取代维生素D衍生物的A环部分的新型化合物，即由通式（1）表示的化合物，用于合成上述化合物的中间体化合物及其制备方法，其中R 1，R 2和R 3相同或不同，各自表示氢或保护基; R 4表示低级烷基。

    METHOD FOR PRODUCING ESTER PLASTICIZERS
    39.
    发明申请
    METHOD FOR PRODUCING ESTER PLASTICIZERS 审中-公开
    用于生产酯类增塑剂

    公开(公告)号：WO98052901A2

    公开(公告)日：1998-11-26

    申请号：PCT/EP1998/002899

    申请日：1998-05-16

    IPC分类号： C07C67/00 ,  C07B61/00 ,  C07C67/08 ,  C07C69/80 ,  C08K5/10

    CPC分类号： C07C67/08 ,  C07C69/80

    摘要： The invention relates to an improved method for producing ester plasticizers by reacting di- or polycarboxylic acids or their anhydrides with alcohols in the presence of metal catalysts.

    摘要翻译： 本发明涉及一种用于由二羧酸或多羧酸或它们的酸酐和醇在金属催化剂的存在下反应来制备酯类增塑剂的改进方法。