&agr;,&ohgr;-Diene metathesis in the presence of ionic liquids

    公开(公告)号:US06756500B1

    公开(公告)日:2004-06-29

    申请号:US09514023

    申请日:2000-02-25

    IPC分类号: C07D20948

    摘要: A process for preparing a cyclic compound comprising subjecting a starting material in the presence of a catalyst component to metathesis reaction in the presence of an ionic liquid, wherein the starting material is a &agr;,&ohgr;-diene bearing a &agr; substituent NRR1 in the &agr; position to a double bond, wherein R is hydrogen or an organic substituent, R1 is tert-butyl, P(R)2, P(R2)2, COR, SO2PhR, COOR or CONRR2, R2is alkyl or phenyl, or R and R1 together form and in which &agr;,&ohgr;-dienes optionally bear at least one further substituent R in any other position with the exception of the &agr; position, wherein R is selected from the group consisting of hydrogen, fused or unfused aryl, alkyl, CN, COOR2 or halogen, and wherein the starting material optionally contains a member selected from the group containing at least one further substituent that is inert in the metathesis reaction and a heteroatom selected from the group consisting of branched alkyl radicals, unbranched alkyl radicals, aromatic carbocyclic rings, non-aromatic carbocyclic rings, carboxylic acids, esters, ethers, epoxides, silyl ethers, thioethers, thioacetals, anhydrides, imines, silylenol ethers, ammonium salts, amides, nitriles, perfluoroalkyl groups, geminal dialkyl groups, alkynes, alkenes, halogens, alcohols, ketones, aldehydes, carbamates, carbonates, urethanes, sulfonates, sulfones, sulfonamides, nitro groups, organosilane units, metal centers and oxygen-containing heterocycles, nitrogen-containing heterocycles, sulfur-containing heterocycles and phosphorus-containing heterocycles, wherein the catalyst component includes homogeneous catalysts and heterogeneous catalysts selected from the group consisting of (i) transition metal carbenes, (ii) transition metal compounds that form transition metal carbenes under the reaction conditions, and (iii) transition metal salts in combination with an alkylating agent.

    Method for activating double metal cyanide catalysts for the production of polyether carbonate polyols
    23.
    发明授权
    Method for activating double metal cyanide catalysts for the production of polyether carbonate polyols 有权
    用于生产聚碳酸酯多元醇的双金属氰化物催化剂的活化方法

    公开(公告)号:US09309356B2

    公开(公告)日:2016-04-12

    申请号:US14232633

    申请日:2012-07-16

    摘要: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts with heterocumulenes for the preparation of polyether carbonate polyols by catalytic copolymerization of carbon dioxide (CO2) with alkylene oxides in the presence of one or more H-functional starter substances, and to a process for the preparation of polyether carbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, characterized in that (α) under an inert gas atmosphere, under an atmosphere of an inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, at temperatures of from 90 to 150° C., the DMC catalyst is mixed with a heterocumulene and H-functional starter substance, (β) alkylene oxide is added at temperatures of from 100 to 150° C. to the mixture from step (α) under an inert gas atmosphere, under an atmosphere of an inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, and (γ) one or more alkylene oxides and carbon dioxide are metered continuously into the mixture resulting from step (β).

    摘要翻译: 本发明涉及一种用于通过在一种或多种H功能性起始剂存在下通过二氧化碳(CO 2)与氧化烯的催化共聚来制备聚醚碳酸酯多元醇的异氰脲酸双金属氰化物(DMC)催化剂的活化方法 以及在双金属氰化物催化剂存在下从一种或多种H官能起始物质,一种或多种环氧烷和二氧化碳制备聚醚碳酸酯多元醇的方法,其特征在于(α)在惰性 气体气氛中,在惰性气体/二氧化碳混合气氛下或在纯二氧化碳气氛下,在90〜150℃的温度下,将DMC催化剂与杂多烯和H官能起始物质(&bgr ;)在惰性气体气氛下,在惰性气体/二氧化碳气氛下,将氧化烯在100至150℃的温度下加入步骤(α)的混合物中 或者在纯二氧化碳气氛下,将(γ)一种或多种烯化氧和二氧化碳连续计量到由步骤(bgr)得到的混合物中。

    Method for producing polyether polyols
    26.
    发明授权
    Method for producing polyether polyols 有权
    聚醚多元醇的制备方法

    公开(公告)号:US09120894B2

    公开(公告)日:2015-09-01

    申请号:US14131977

    申请日:2012-07-17

    摘要: The present invention relates to a process for the preparation of polyether carbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, wherein (α) the H-functional starter substance or a mixture of at least two H-functional starter substances is initially introduced into the reaction vessel, (β) for the activation, a part amount (based on the total amount of the amount of alkylene oxides employed in steps (β) and (γ)) of one or more alkylene oxides is added to the mixture resulting from step (α), it also being possible for step (β) to be carried out several times for the activation, (γ) one or more alkylene oxides and carbon dioxide are metered continuously into the mixture resulting from step (β) (“copolymerization”), the alkylene oxides employed for the copolymerization being identical to or different from the alkylene oxides employed in step (β), characterized in that in step (γ) the carbon dioxide is passed into the mixture by (i) gassing the reaction mixture in the reactor from the bottom, (ii) using a hollow shaft stirrer, (iii) a combination of the metering operations according to (i) and (ii), and/or (iv) gassing over the surface of the liquid by using stirrer units configured in several stages.

    摘要翻译: 本发明涉及在双金属氰化物催化剂存在下由一种或多种H官能起始化合物,一种或多种环氧烷和二氧化碳制备聚醚碳酸酯多元醇的方法,其中(α)H官能团 起始物质或至少两种H功能性起始物质的混合物最初被引入反应容器((bgr))中用于活化,部分量(基于步骤(bgr)中使用的环氧烷烃的总量 (γ))和(γ))加入到由步骤(α)得到的混合物中,对于活化,(γ)一个或多个步骤(&bgr)可以进行几次, 更多的环氧烷和二氧化碳被连续地计量到由步骤((bgr))(“共聚”)得到的混合物中,用于共聚的烯化氧与步骤(bgr)中使用的环氧烷烃相同或不同, 其特征在于在步骤(γ)中,二氧化碳通过以下步骤进入混合物:(i)从底部将反应混合物放入反应器中,(ii)使用中空轴搅拌器,(iii)根据 至(i)和(ii),和/或(iv)通过使用在几个阶段中配置的搅拌器单元在液体的表面上放气。

    METHOD FOR ACTIVATING DOUBLE METAL CYANIDE CATALYSTS FOR PRODUCING POLYETHER POLYOLS
    27.
    发明申请
    METHOD FOR ACTIVATING DOUBLE METAL CYANIDE CATALYSTS FOR PRODUCING POLYETHER POLYOLS 有权
    用于生产聚醚多元醇的双金属氰化物催化剂的活化方法

    公开(公告)号:US20140228537A1

    公开(公告)日:2014-08-14

    申请号:US14232015

    申请日:2012-07-17

    IPC分类号: C08G64/32

    摘要: The present invention relates to a process for the activation of double metal cyanide (DMC) catalysts and to a process for the preparation of polyethercarbonate polyols from one or more H-functional starter compounds, one or more alkylene oxides and carbon dioxide in the presence of a double metal cyanide catalyst, characterized in that (α) (α1) the DMC catalyst and one or more H-functional starter compounds are placed in a reactor, (α2) an inert gas, an inert gas/carbon dioxide mixture or carbon dioxide is passed through the reactor at a temperature of 50 to 200° C. and at the same time a reduced pressure (absolute) of 10 mbar to 800 mbar is established in the reactor by removal of the inert gas or carbon dioxide, (β) under an atmosphere of inert gas/carbon dioxide mixture or under a pure carbon dioxide atmosphere, alkylene oxide is added to the mixture from step (α) at temperatures of 50 to 200° C., and (γ) one or more alkylene oxides and carbon dioxide are metered into the mixture resulting from step (β).

    摘要翻译: 本发明涉及一种活化双金属氰化物(DMC)催化剂的方法,以及一种由一种或多种H官能起始化合物,一种或多种环氧烷和二氧化碳在存在下制备聚醚碳酸酯多元醇的方法 一种双金属氰化物催化剂,其特征在于将(α)(α1)DMC催化剂和一种或多种H官能起始化合物置于反应器中,(α2)惰性气体,惰性气体/二氧化碳混合物或二氧化碳 在50至200℃的温度下通过反应器,同时通过除去惰性气体或二氧化碳,在反应器中建立10毫巴至800毫巴的减压(绝对)(绝对)。 )在惰性气体/二氧化碳混合物的气氛下或在纯二氧化碳气氛下,在步骤(α)的混合物中,在50〜200℃的温度下加入环氧烷,(γ)一种或多种环氧烷烃 并将二氧化碳计量加入 由(步骤(bgr))产生的混合物。