VERFAHREN ZUR HERSTELLUNG VON 2-HALOGENACRYLSÄUREESTERN

    公开(公告)号:EP3157900A1

    公开(公告)日:2017-04-26

    申请号:EP15728903.4

    申请日:2015-06-17

    申请人: Saltigo GmbH

    摘要: The invention relates to a method for producing 2-halogen-acrylic acid esters from 2-hydroxymethyl- or 2-halogen-methyl- or 2-chlorosulfinyloxymethyl-2-halogen-malonic acid diesters. The invention further relates to 2-halogen-methyl-2-halogen-malonic acid diesters or 2-chlorosulfinyloxymethyl-2-halogen-malonic acid diesters of a new type, which can be used to produce the 2-halogen-acrylic acid esters.

    摘要翻译: 本发明涉及由2-羟甲基 - 或2-卤代 - 甲基 - 或2-氯亚磺酰氧基甲基-2-卤素 - 丙二酸二酯制备2-卤素 - 丙烯酸酯的方法。 本发明还涉及可用于生产2-卤素 - 丙烯酸酯的新型2-卤代 - 甲基-2-卤代 - 丙二酸二酯或2-氯亚磺酰氧基甲基-2-卤代 - 丙二酸二酯。

    METHOD FOR PRODUCING 3,5-DIMETHYLDODECANOIC ACID
    3.
    发明公开
    METHOD FOR PRODUCING 3,5-DIMETHYLDODECANOIC ACID 有权
    生产3,5-二甲基二氢肉酸的方法

    公开(公告)号:EP2949641A1

    公开(公告)日:2015-12-02

    申请号:EP15168198.8

    申请日:2015-05-19

    摘要: Provided is a short process for simply and efficiently producing 3,5-dimethyldodecanoic acid, which is an active ingredient of the pheromone of California prionus. More specifically provided is a method for producing 3,5-dimethyldodecanoic acid (5) comprising the steps of: converting 2-methylnonyl halide (1) to a 2-methylnonyl metal reagent (2), and reacting the 2-methylnonyl metal reagent (2) with 2-ethylidene malonic acid ester (3) to form 2-(1,3-dimethyldecyl)malonic acid ester (4) as a result of 1,4-addition of the 2-methylnonyl metal reagent (2) to the 2-ethylidene malonic acid ester (3), as shown in the following scheme:

    摘要翻译: 提供简单有效地生产加利福尼亚prionus的信息素的活性成分3,5-二甲基十二烷酸的简短方法。 更具体地说,提供了一种制备3,5-二甲基十二烷酸(5)的方法,该方法包括以下步骤:将2-甲基壬基卤(1)转化为2-甲基壬基金属试剂(2),并使2-甲基壬基金属试剂 2)与2-亚乙基丙二酸酯(3)反应形成2-(1,3-二甲基癸基)丙二酸酯(4),其结果是2-甲基壬基金属试剂(2)1,4-加成到 2-亚乙基丙二酸酯(3),如以下方案所示:

    ORGANIC COMPOUNDS
    5.
    发明公开
    ORGANIC COMPOUNDS 有权
    维多利亚州朱庇特·赫伯特(BETA-GAMMAUNGESÄTTIGTEESTER UND VERFAHREN ZU IHRER HERSTELLUNG)

    公开(公告)号:EP2513030A1

    公开(公告)日:2012-10-24

    申请号:EP10798071.6

    申请日:2010-12-17

    申请人: Givaudan SA

    摘要: A process for the preparation of β,γ-unsaturated-γ,γ-disubstituted esters 1 with high
    E/Z - and β,γ/α,β-ratios, Formula (1) by reacting at a temperature of between about 130 and 170 degrees centigrade the conjugated malonate Formula (3) with, a group I, II or III metal halide or an organic cation/halide anion pair, an inorganic proton source and a polar solvent.

    摘要翻译: 一种制备具有高E / Z-和γb的γ不饱和-γ,γ-二取代酯1的方法,式(1)通过在温度为 共轭丙二酸酯式(3)与I,II或III族金属卤化物或有机阳离子/卤化物阴离子对,无机质子源和极性溶剂约为130和170摄氏度。

    PROCESSES FOR PRODUCING (4E)-5-CHLORO-2-ISOPROPYL-4-PENTENOIC ESTER AND OPTICALLY ACTIVE ISOMER THEREOF
    10.
    发明公开
    PROCESSES FOR PRODUCING (4E)-5-CHLORO-2-ISOPROPYL-4-PENTENOIC ESTER AND OPTICALLY ACTIVE ISOMER THEREOF 有权
    VERFAHREN ZUR HERSTELLUNG VON(4E)-5-氯-2-异丙基-4-戊烯酸酯和OPTISCHAKTIVEM ISOMER DAVON

    公开(公告)号:EP1571138A4

    公开(公告)日:2005-12-07

    申请号:EP03777366

    申请日:2003-12-09

    摘要: Processes for producing a (4E)-5-chloro-2-isopropyl-4-pentenoic ester and an optically active isomer thereof which are useful as intermediates for medicines and agricultural chemicals. One of the processes, which is for producing a (4E)-5-chloro-2-isopropyl-4-pentenoic ester represented by the following formula (4), is characterized by reacting a compound represented by the following formula (2) with a base (II) in the presence of an aprotic solvent (II) and subsequently with (1E)-1,3-dichloro-1-propene to obtain a compound represented by the following formula (3) and then eliminating the alkoxycarbonyl group from one of the ester groups of the compound represented by the following formula (3). The other process, which is for producing an (S)-(4E)-5-chloro-2-isopropyl-4-pentenoic ester represented by the following formula (5), is characterized by optically resolving the (4E)-5-chloro-2-isopropyl-4-pentenoic ester represented by the formula (4), which is obtained by that production process. (In the formulae, R represents lower alkyl or aralkyl.)

    摘要翻译: 生产用作药物和农业化学品中间体的(4E)-5-氯-2-异丙基-4-戊烯酸酯及其旋光异构体的方法。 用于制备由下式(4)表示的(4E)-5-氯-2-异丙基-4-戊烯酸酯的方法之一的特征在于使由下式(2)表示的化合物与 在非质子传递溶剂(II)存在下,然后用(1E)-1,3-二氯-1-丙烯处理碱(II),得到下式(3)代表的化合物,然后从其中除去烷氧基羰基 由下式(3)表示的化合物的酯基之一。 另一种用于制备由下式(5)表示的(S) - (4E)-5-氯-2-异丙基-4-戊烯酸酯的方法的特征在于通过光学拆分(4E)-5- (4)所示的3-氯-2-异丙基-4-戊烯酸酯,由该制造方法得到。 (式中,R表示低级烷基或芳烷基。)