利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

62 条记录 (耗时 0.017 秒)

    Catalytic procedure for the prepartation of organic carbonates
    53.
    发明公开
    Catalytic procedure for the prepartation of organic carbonates 失效
    Katalytisches Verfahren zur Herstellung von organischen Carbonaten。

    公开(公告)号：EP0574082A2

    公开(公告)日：1993-12-15

    申请号：EP93201598.5

    申请日：1993-06-04

    申请人： ENICHEM SYNTHESIS S.p.A.

    发明人： Delledonne, Daniele ,  Rivetti, Franco ,  Romano, Ugo

    IPC分类号： C07C68/00 ,  C07C69/96

    CPC分类号： C07D317/38 ,  C07C68/005 ,  C07D317/36 ,  C07C69/96

    摘要： Catalytic procedure for the preparation of an organic carbonate having general formula (I):
    wherein R represents a C 1 -C 10 alkyl radical, linear or branched, or a C 5 -C 8 cycloalkyl radical; or of a cyclic organic carbonate having general formula (II):
    wherein R' represents a C 2 -C 5 alkylene radical, linear or branched; including the reacting of an aliphatic or cyclo-aliphatic alcohol having general formula (III):
    or an aliphatic diol having general formula (IV):
    wherein R and R' have the meaning described above, with carbon monoxide and oxygen, in the presence of a catalyst composed of a cobalt(II) or cobalt(III) ion and an organic binder containing at least one oxygen atom, characterized in that the process is carried out in the presence of at least one reaction coadjuvant selected from the following groups of linear or cyclic compounds: ureas, nitriles, amides, phosphoramides, sulphones, sulphoxides, carbamates.

    摘要翻译： 用于制备具有通式（I）的有机碳酸酯的催化方法：其中R表示C1-C10烷基，直链或支链或C5-C8环烷基; 或具有通式（II）的环状有机碳酸酯：其中R'表示直链或支链的C 2 -C 5亚烷基; 包括具有通式（III）的脂族或环脂族醇的反应：R-OH（III）或具有通式（IV）的脂族二醇：HO-R'-OH（IV）其中R和R'具有 在由钴（II）或钴（III）离子组成的催化剂和含有至少一个氧原子的有机粘合剂的存在下，用上述一氧化碳和氧气的含义，其特征在于该方法在 存在至少一种选自以下一组线性或环状化合物的反应助剂：脲，腈，酰胺，磷酰胺，砜，亚砜，氨基甲酸酯。

    Process for the preparation of mono-ethers of hydroquinones
    57.
    发明公开
    Process for the preparation of mono-ethers of hydroquinones 失效
    Verfahren zur Herstellung von Hydrochinon-Monoäthern。

    公开(公告)号：EP0317898A2

    公开(公告)日：1989-05-31

    申请号：EP88119118.3

    申请日：1988-11-17

    申请人： ENICHEM SYNTHESIS S.p.A.

    发明人： Correale, Mariano ,  Panseri, Pietro ,  Romano, Ugo ,  Minisci, Francesco

    IPC分类号： C07C43/23 ,  C07C41/09

    CPC分类号： C07C41/09 ,  C07C43/23

    摘要： Mono-ethers of hydroquinones of formula (I)
    wherein
    R represents alkyl, alkoxy-alkyl, cycloalkyl, aryl-alkyl, or cycloalkyl-alkyl, and
    R¹ is hydrogen or alkyl, cycloalkyl, aryl-alkyl, or cycloalkyl-alkyl,
    are prepared by contacting the corresponding hydroquinones with the corresponding alcohols ROH, in the presence of a catalytic mixture consisting of

    a) a strong acid
    b) a halogen or a hydrohalic acid selected from HBr, HI, I₂, and Br₂, and
    c) H₂O₂ in a molar amount lower than that of the starting hydroquinone.

    摘要翻译： 式（I）的氢醌的单醚其中R表示烷基，烷氧基 - 烷基，环烷基，芳基 - 烷基或环烷基 - 烷基，R 1是氢或烷基，环烷基，芳基 - 烷基或 环烷基 - 烷基是通过在由a）强酸b）卤素或选自HBr，HI，I 2和Br 2的氢卤酸的催化混合物存在下使相应的氢醌与相应的醇ROH接触来制备的， 和c）H 2 O 2的摩尔量低于起始氢醌的摩尔量。 Ø

    Process for the monoepoxidation of compounds containing two double bonds
    60.
    发明公开
    Process for the monoepoxidation of compounds containing two double bonds 失效
    Verfahren zur Monoepoxydierung von Verbindungen，die zwei Doppelbindungen enthalten。

    公开(公告)号：EP0190609A2

    公开(公告)日：1986-08-13

    申请号：EP86100825.8

    申请日：1986-01-22

    申请人： ENICHEM SYNTHESIS S.p.A.

    发明人： Maspero, Federico ,  Romano, Ugo

    IPC分类号： C07D301/12 ,  C07D303/04 ,  C07D303/16 ,  C07D303/22

    CPC分类号： C07D303/22 ,  B01J29/89 ,  C07D301/12 ,  C07D303/04 ,  C07D303/16

    摘要： The invention relates to a process for the monoepoxidation of compounds containing two olephinic double bonds by means of hydrogen peroxide in the presence of a catalyst constituted by a Si-Ti synthetic zeolite (titanium-silicalite), wherein Ti and Si in the form of their oxides Ti0 2 and SiO 2 have a molar ratio in the zeolite corresponding to the formula
    with x being comprised within the range of from 0.0001 to 0.04, preferably of from 0.0055 to 0.036, possibly in the presence of at least one solvent of polar nature, by operating with the heterogeneous catalyst being dispersed in the liquid phase at a temperature of from 0°C to 150°C, and under a pressure comprised within the range of from 0.1 abs.atm to 20 abs.atm.

    摘要翻译： 本发明涉及在由Si-Ti合成沸石（钛 - 硅沸石）构成的催化剂存在下，借助于过氧化氢对含有两个亲油双键的化合物进行单环氧化的方法，其中Ti和Si的形式为 氧化物TiO 2和SiO 2在对应于式x TiO 2的沸石中具有摩尔比（1-x）SiO 2，其中x在0.0001至0.04的范围内，优选为0.0055至0.036，可能存在于 通过使非均相催化剂在0℃至150℃的温度下分散在液相中并且在0.1atm至20abs的范围内的压力下操作，所述极性性质的至少一种溶剂。 大气压。