PROCESS FOR PRODUCTION OF HIGH-PURITY VINYL ETHER
    3.
    发明申请
    PROCESS FOR PRODUCTION OF HIGH-PURITY VINYL ETHER 审中-公开
    生产高纯度乙烯醚的方法

    公开(公告)号:US20100249465A1

    公开(公告)日:2010-09-30

    申请号:US12729639

    申请日:2010-03-23

    Abstract: A process for producing a high-purity vinyl ether, which comprises: a step of subjecting an alcohol represented by the general formula (1) R—O—H  (1) to a vinyl ether formation reaction in the presence of a catalyst to synthesize a vinyl ether represented by the general formula (2), R—O—CH═CH2  (2) a step of removing the catalyst from the reaction mixture obtained in the above step to obtain a crude vinyl ether containing the vinyl ether and the unreacted raw material alcohol, a step of reacting the unreacted raw material alcohol in the crude vinyl ether, with the vinyl ether in the presence of an acid catalyst, to convert the alcohol into an acetal represented by the general formula (3), and a step of subjecting a crude vinyl ether containing the acetal (III) to distillation to obtain a high-purity vinyl ether.

    Abstract translation: 一种制备高纯度乙烯基醚的方法,包括:在催化剂存在下使由通式(1)R-O-H(1)表示的醇进行乙烯基醚形成反应的步骤合成 由通式(2)表示的乙烯基醚,R-O-CH = CH 2(2)从上述步骤中获得的反应混合物中除去催化剂以获得含有乙烯基醚的粗乙烯基醚和未反应的步骤 原料醇,在粗乙烯基醚中使未反应的原料醇与乙酸乙烯酯在酸催化剂的存在下反应的步骤,将醇转化为由通式(3)表示的缩醛,以及步骤 将含有缩醛(III)的粗乙烯基醚进行蒸馏以获得高纯度乙烯基醚。

    Method for producing alkenyl ethers
    4.
    发明申请
    Method for producing alkenyl ethers 审中-公开
    烯基醚的制备方法

    公开(公告)号:US20030114715A1

    公开(公告)日:2003-06-19

    申请号:US10240683

    申请日:2002-10-03

    CPC classification number: C07C41/08 C07C43/16 C07C43/215

    Abstract: Alkenyl ethers are prepared by reacting the corresponding alcohols or phenols with acetylenes in the liquid phase in the presence of basic alkali metal compounds and a cocatalyst comprising compounds of the formula (Ia) and/or (Ib)R1Onull(CH2CH2CH2CH2O)nnullHnullnull(Ia)R1Onull(CH2CH2CH2CH2O)nnullH2,nullnull(Ia)where R1, R2 are, independently of one another, C1-C6-alkyl or C2-C6-alkenyl, or R1 and R2 together form a butyl unit and n is 1, 2, 3, 4 or 5.

    Abstract translation: 烯化醚通过在碱性碱金属化合物和包含式(Ia)和/或(Ib)R 1 O-(CH 2 CH 2 CH 2 CH 2 O)n H(Ia)的化合物的助催化剂的存在下在液相中与相应的醇或酚反应来制备。 )R 1 O-(CH 2 CH 2 CH 2 CH 2 O)n -H 2,(Ia)其中R 1,R 2彼此独立地为C 1 -C 6 - 烷基或C 2 -C 6 - 烯基,或者R 1和R 2一起形成丁基单元并且n为1, 2,3,4或5。

    Preparation of enol ethers
    5.
    发明授权
    Preparation of enol ethers 失效
    烯醇醚的制备

    公开(公告)号:US06504064B1

    公开(公告)日:2003-01-07

    申请号:US09884969

    申请日:2001-06-21

    CPC classification number: C07C41/08 C07C43/16

    Abstract: Enol ethers of the formula (I) where R1 to R3 are each, independently of one another, hydrogen or a carbon-containing organic radical and R4 is an unsubstituted or substituted alkyl radical, are prepared by reacting alcohols of the formula (II) R4—OH  (II), with alkynes of the formula (IlIa), alkadienes of the formula (IIIb) R1—C≡C—CHR2R3  (IIIa), R1—CH═C═CR2R3  (IIIb) or mixtures thereof, where R1 to R4 are as defined above, in the presence of an alkali metal alkoxide and a polar, aprotic solvent.

    Abstract translation: 其中R 1至R 3各自独立地为氢或含碳有机基团且R 4为未取代或取代的烷基的式(I)的烯醇醚通过使式(II)的醇与 在碱金属醇盐和极性非质子溶剂的存在下,式(IIIa)的炔,式(IIIb)的链二烯或其混合物,其中R 1至R 4如上定义。

    Preparation of monovinyl ethers
    7.
    发明授权
    Preparation of monovinyl ethers 失效
    单乙烯基醚的制备

    公开(公告)号:US5723685A

    公开(公告)日:1998-03-03

    申请号:US548739

    申请日:1995-10-26

    CPC classification number: C07C41/08 C07C41/54

    Abstract: The preparation of monovinyl ethers of the general formula I ##STR1## in which A stands for a chemical bond or for a methylene or ethylene group, the radicals R.sup.1 and R.sup.2 independently stand for hydrogen, alkyl, cycloalkyl, or aryl groups or R.sup.1 and R.sup.2 together form a C.sub.3 -C.sub.5 alkylene bridging member, by the reaction of a diol of the general formula II ##STR2## in which the variables have the above meanings, with acetylene in the presence of a base, in which the reaction is carried out at 150.degree.-250.degree. C. under an acetylene partial pressure of 5-25 bar until 40-80% of the diol has been converted, at which point the reaction is stopped and the monovinyl ether of the formula I is isolated.

    Abstract translation: 制备通式I的单乙烯基醚(I)其中A代表化学键或亚甲基或亚乙基,基团R 1和R 2分别代表氢,烷基,环烷基或芳基或 R 1和R 2一起形成C 3 -C 5亚烷基桥连体,通过其中变量具有上述含义的通式II的二醇(II)与乙炔在碱的存在下反应,其中 反应在150-250℃,乙炔分压为5-25巴下进行,直到二醇的40-80%转化为止,此时反应停止,式I的单乙烯基醚 是孤立的

    Vinyloxy hydroxyalkylcycloalkane and preparation therefor
    8.
    发明授权
    Vinyloxy hydroxyalkylcycloalkane and preparation therefor 失效
    乙烯氧基羟基烷基环烷烃及其制备方法

    公开(公告)号:US5183946A

    公开(公告)日:1993-02-02

    申请号:US852421

    申请日:1992-03-16

    CPC classification number: C07C41/08 C07C2101/14 C07C2101/18

    Abstract: The invention relates to a vinyloxy hydroxyalkyl cycloalkylene having the formulaHO(CH.sub.2).sub.x --A--(CH.sub.2).sub.x, OCH.dbd.CH.sub.2wherein x has a value of from 1 to 10; x' has a value of from 0 to 10 and A is a cycloalkylene group having from 3 to 8 carbon atoms in the ring and is optionally substituted with lower alkyl. The invention also relates to the method for synthesizing the above compounds.

    Abstract translation: 本发明涉及具有式HO(CH 2)x -A-(CH 2)x,OCH = CH 2的乙烯基氧基羟基烷基亚环烷基,其中x具有1至10的值; x'具有0至10的值,并且A是在环中具有3至8个碳原子的亚环烷基,并且任选被低级烷基取代。 本发明还涉及上述化合物的合成方法。

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