Latex-base paint containing 2-methoxy-2-phenyl propane or
8-methoxy-p-menthane
    61.
    发明授权
    Latex-base paint containing 2-methoxy-2-phenyl propane or 8-methoxy-p-menthane 失效
    含有2-甲氧基-2-苯基丙烷或8-甲氧基对薄荷酸的乳胶基漆

    公开(公告)号:US4292219A

    公开(公告)日:1981-09-29

    申请号:US101656

    申请日:1979-12-10

    摘要: In the acid-catalyzed etherification of olefins with alcohols, substantially complete recovery of alcohol and catalyst is obtained when small amounts of water (1-10%) are added to the reaction. The addition of water provides a two-phase reaction medium in which olefin and ether are in the upper phase and alcohol and catalyst are in the lower phase. These phases are maintained during the course of the reaction, which continues as a two-phase system. Certain novel ethers produced by this process are likewise disclosed herein.

    摘要翻译: 在烯烃与醇的酸催化醚化中,当将少量的水(1-10%)加入到反应中时,获得醇和催化剂的基本上完全的回收。 水的添加提供了两相反应介质,其中烯烃和醚在上段,醇和催化剂处于较低的相。 在反应过程中维持这些相,作为两相体系继续进行。 通过该方法生产的某些新型醚同样在此公开。

    Catalytic process for the conversion of toluene to equimolar amounts of
phenol acetate and methylene diacetate
    62.
    发明授权
    Catalytic process for the conversion of toluene to equimolar amounts of phenol acetate and methylene diacetate 失效
    将甲苯转化为等摩尔量的乙酸苯酯和二乙酸亚甲酯的催化方法

    公开(公告)号:US4260808A

    公开(公告)日:1981-04-07

    申请号:US957273

    申请日:1978-11-03

    IPC分类号: C07C67/05

    CPC分类号: C07C67/05 C07C67/035

    摘要: Equimolar amounts of phenol and formaldehyde may be prepared from oxygen and toluene. The catalytic oxidation of toluene, when carried out in the presence of acetic anhydride, forms phenyl acetate and methylene diacetate. Pyrolysis of these two intermediates yields phenol and formaldehyde.Significant improvements in this process are achieved when the first stage of the reaction is carried out in the presence of MoO.sub.3.In a further embodiment of this invention it has been found that Group VIII dithiosemibenzil compounds, particularly nickel dithiosemibenzil, serves as a superior promoter for the toluene oxidation reaction.In still a further embodiment of this invention it has been found that persulfate promoters such as potassium persulfate, persulfuric acid, or Caro's dry acid are particularly effective promoters for the toluene oxidation reaction.In a like manner, hydroquinone or resorcinol may be obtained from cresyl acetates.

    摘要翻译: 可以从氧和甲苯制备等摩尔量的苯酚和甲醛。 甲苯的催化氧化在乙酐存在下进行时,形成乙酸苯酯和二乙酸亚甲酯。 这两种中间体的热解产生苯酚和甲醛。 当反应的第一阶段在MoO 3存在下进行时,可以实现该方法的显着改进。 在本发明的另一个实施方案中,已经发现,第VIII族二硫代二苯胺化合物,特别是二硫代二苯胺二镍,用作甲苯氧化反应的优良助剂。 在本发明的又一个实施方案中,已经发现过硫酸盐促进剂如过硫酸钾,过硫酸或Caro's干酸是用于甲苯氧化反应的特别有效的促进剂。 以类似的方式,可以从乙酸甲苯酯获得氢醌或间苯二酚。

    Phosphonite-and phosphonite-promoted ruthenium - cobalt catalysts for
the dealkoxyhydroxymethylation of acetals to form glycol ethers
    70.
    发明授权
    Phosphonite-and phosphonite-promoted ruthenium - cobalt catalysts for the dealkoxyhydroxymethylation of acetals to form glycol ethers 失效
    亚膦酸酯和亚膦酸盐促进的钌 - 钴催化剂用于缩醛的脱烷基羟甲基化形成二醇醚

    公开(公告)号:US4895987A

    公开(公告)日:1990-01-23

    申请号:US871351

    申请日:1986-06-06

    IPC分类号: B01J31/20 B01J31/24 C07C41/30

    摘要: Ruthenium-cobalt- or cobalt-containing catalysts which have been promoted with phosphonites or phosphinites effectively catalyze the dealkoxyhydroxymethylation of aldehyde acetals to form glycol monoethers. Methylal, for example, may be reacted with syngas, i.e., CO and H.sub.2, in the presence of these phosphonite- or phosphinite-promoted cobalt or ruthenium- cobalt catalysts to form the monomethyl ether of ethylene glycol. In a like manner acetaldehyde may be converted to the corresponding propylene glycol monoether. The process may advantageously be carried out with high yields and selectivities in the presence of a polar or non-polar organic solvent in combination with the catalyst system of this invention.The invention is also directed to the phosphonite- or phosphonite-promoted cobalt and ruthenium-cobalt catalyst system per se.

    摘要翻译: 已经用亚膦酸盐或次膦酸盐促进的含钌钴或钴的催化剂有效地催化醛缩醛的脱烷基羟甲基化形成二醇单醚。 甲缩醛例如可以在合成气(即CO和H 2)的存在下,在这些亚膦酸盐或次膦酸盐促进的钴或钌 - 钴催化剂的存在下反应以形成乙二醇的单甲基醚。 以类似方式,乙醛可以转化成相应的丙二醇单醚。 在极性或非极性有机溶剂与本发明的催化剂体系的组合下,该方法可以有利地以高产率和选择性进行。 本发明还涉及亚膦酸盐或亚膦酸盐促进的钴和钌 - 钴催化剂体系本身。