Addition reaction of hydroxyl-containing compounds with alkynes or
allenes
    1.
    发明授权
    Addition reaction of hydroxyl-containing compounds with alkynes or allenes 失效
    含羟基的化合物与炔或丙烯的加成反应

    公开(公告)号:US6087538A

    公开(公告)日:2000-07-11

    申请号:US92059

    申请日:1998-06-05

    摘要: Compounds of the formula I and II ##STR1## where R.sup.1 is hydrogen or an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical or an acyl radical, it being possible for these radicals to carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals which may be linked to one another with formation of a ring and m is 0 or 1, are prepared by an addition reaction of a compound of the formula IIIR.sup.1 OH IIIwith an acetylene or allene of the formula IV or V ##STR2## where R.sup.1 and R have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a heterogeneous, silicate-containing catalyst, by a process in which the catalyst used contains, as an active component, an X-ray amorphous zinc silicate or cadmium silicate containing from 1 to 40% by weight, calculated as oxide, of zinc or cadmium and is obtainable by applying a zinc salt or cadmium salt of an organic acidic compound which is decomposable at below 400.degree. C., to an amorphous silica and forming the catalyst at from 50 to 500.degree. C., in the presence of a hydroxyl-containing compound selected from the group consisting of water, alkanols with up to 10 carbon atoms, diols and polyols having 2 to 6 carbon atoms and 2 or 3 OH groups and carboxylic acids of 1 to 6 carbon atoms.

    摘要翻译: 式I和II的化合物,其中R 1是氢或脂族,脂环族,芳脂族,芳族或杂环基或酰基,这些基团可能携带另外不与炔或炔反应的取代基和基团 R 2彼此独立地是氢或脂族,脂环族,芳脂族,芳族或杂环基团,其可以通过形成环而彼此连接并且m为0或1,其通过将化合物 式IIIR1OHIII具有式IV或V的乙炔或二烯,其中R1和R具有上述含义,在气相中,在非均相含硅酸盐催化剂存在下,在升高的温度下,通过所用催化剂包含的方法, 作为活性成分,含有以氧化物计为1〜40重量%的锌或镉的X射线无定形硅酸锌或铯硅酸盐,可通过应用 在低于400℃下可分解的有机酸性化合物的锌锌盐或镉盐加入到无定形二氧化硅中,并在50-500℃下,在含羟基化合物存在下,在选自 具有至多10个碳原子的链烷醇,具有2至6个碳原子的二醇和多元醇以及2或3个OH基团以及1至6个碳原子的羧酸组成的组。

    Method for producing enol ethers
    3.
    发明授权
    Method for producing enol ethers 失效
    烯醇醚的制备方法

    公开(公告)号:US06211416B1

    公开(公告)日:2001-04-03

    申请号:US09424855

    申请日:1999-12-06

    IPC分类号: C07C4128

    摘要: Enol ethers of the formula I where R1 is an aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical which may carry further substituents which do not react with acetylenes or allenes, and the radicals R, independently of one another, are hydrogen or aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radicals, which may be bonded to one another to form a ring, and m is 0 or 1, are prepared by reacting an acetal or ketal of the formula II with an acetylene or allene of the formula III or IV where R and R1 have the abovementioned meanings, in the gas phase at elevated temperatures in the presence of a zinc- or cadmium- and silicon- and oxygen-containing heterogeneous catalyst.

    摘要翻译: 式I的烯醇醚,其中R 1是脂族,脂环族,芳脂族,芳族或杂环基团,其可以进一步携带不与炔或全烯反应的取代基,并且基团R彼此独立地为氢或脂族,脂环族, 芳族或芳族杂环基,其可以彼此结合形成环,并且m为0或1,通过使式II的缩醛或缩酮与式III或IV的炔或丙烯的反应来制备,其中R和 R1在具有锌或镉和含硅和含氧异相催化剂存在下的高温下在气相中具有上述含义。

    Addition reaction of hydroxy1-containing compounds with alkynes or
allenes
    4.
    发明授权
    Addition reaction of hydroxy1-containing compounds with alkynes or allenes 失效
    含羟基的化合物与炔或丙烯的加成反应

    公开(公告)号:US6120744A

    公开(公告)日:2000-09-19

    申请号:US97818

    申请日:1998-06-16

    摘要: A process for preparing compounds of the formulae I and II ##STR1## where R.sup.1 and R have the meanings indicated in the specification by an addition reaction of a compound of the formula IIIR.sup.1 OH IIIwith an acetylene or allene of the formula IV or V ##STR2## in the gas phase at elevated temperatures in the presence of a heterogeneous catalyst. The catalyst is obtained by impregnating silica with a zinc salt, by a process in which the reaction is carried out at below 200.degree. C. and the catalyst contains, as an active component, an X-ray amorphous zinc silicate or cadmium silicate containing from 1 to 40% by weight, calculated as oxide, of zinc or cadmium, obtainable by applying a salt of zinc or cadmium and an inorganic oxo acid, which salt is decomposable at below 400.degree. C., to amorphous silica and forming the catalyst before the reaction at from 50 to 500.degree. C. or during the reaction in situ at from 50 to 200.degree. C. in the presence of a hydroxyl-containing compound such as water, alkanols of 1 to 6 carbon atoms, diols and polyols having 2 to 6 carbon atoms and 2 or 3 OH groups and low molecular weight carboxylic acids.

    摘要翻译: 制备式I和II化合物的方法,其中R1和R具有本说明书中通过式III的化合物R1OH III与乙炔或式IV或V的烯在气相中的加成反应所示的含义 在非均相催化剂存在下在升高的温度下进行。 通过在低于200℃下进行反应的方法,用锌盐浸渍二氧化硅得到催化剂,催化剂含有作为活性成分的X射线无定形硅酸锌或含有 以氧化物计的锌或镉1〜40重量%,可通过将该盐在低于400℃下分解的锌或镉和无机含氧酸盐与无定形二氧化硅反应而形成催化剂 在50至500℃的反应或在50-200℃下在含羟基的化合物如水,1至6个碳原子的链烷醇存在下的反应期间的反应,二醇和多元醇具有2 至6个碳原子和2或3个OH基团和低分子量羧酸。

    Preparation of unsaturated ketones
    5.
    发明授权
    Preparation of unsaturated ketones 失效
    不饱和酮的制备

    公开(公告)号:US06184420B2

    公开(公告)日:2001-02-06

    申请号:US09150925

    申请日:1998-09-10

    IPC分类号: C07C49203

    摘要: Unsaturated ketones of the formulae Ia and Ib are prepared by a process consisting of the combination of the following reactions: a) The conventional reaction of an allyl alcohol of the formula IIa or a propargyl alcohol of the formula IIb with an isopropenyl ether of the formula III with formation of a ketal of the formula IV as a byproduct, b) preparation of the isopropenyl ether of the formula III by reacting a ketal of the formula IV with propyne or allene, or a mixture thereof in the gas phase at elevated temperatures in the presence of a heterogeneous catalyst containing zinc or cadmium together with silicon or oxygen, and c) feeding the ketal of the formula IV formed in the reaction (a) into stage (b) for the preparation of the isopropenyl ether of the formula III again.

    摘要翻译: 式Ia和Ib的不饱和酮通过由以下反应的组合组成的方法制备:a)式IIa的烯丙醇或式IIb的炔丙醇与式III的异丙烯基醚的常规反应,形成 的式I的缩酮化合物是一种副产物,b)通过使式IV的缩酮与丙炔或丙烯或其混合物在升高的温度下在存在下进行反应来制备式III的异丙烯基醚 含有锌或镉以及硅或氧的非均相催化剂,和c)将反应(a)中形成的式IV的缩酮进料到步骤(b)中,以再次制备式III的异丙烯基醚。