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    Process for preparation of aromatic hydroperoxides
    4.
    发明授权
    Process for preparation of aromatic hydroperoxides 失效
    芳香族氢过氧化物的制备方法

    公开(公告)号：US4288637A

    公开(公告)日：1981-09-08

    申请号：US143474

    申请日：1980-04-24

    Applicant: Fujihisa Matsunaga ,  Yoshiyuki Shinohara ,  Isamu Okubo ,  Takayuki Nakamura ,  Seiichi Tanaka

    Inventor： Fujihisa Matsunaga ,  Yoshiyuki Shinohara ,  Isamu Okubo ,  Takayuki Nakamura ,  Seiichi Tanaka

    IPC: C07B61/00 ,  B01J27/00 ,  B01J31/00 ,  C07C39/02 ,  C07C67/00 ,  C07C407/00 ,  C07C409/08 ,  C07C409/10 ,  C07C409/12 ,  C07C179/035

    CPC classification number: C07C39/02 ,  C07C407/00 ,  C07C409/08 ,  C07C409/10 ,  C07C409/12

    Abstract: Disclosed is a process for the preparation of aromatic hydroperoxides comprising contacting two liquid phases comprising an oily phase containing an aromatic compound having a secondary alkyl group and a basic aqueous phase under agitation with a molecular oxygen-containing gas in the presence of a copper compound catalyst such as an inorganic salt or organic acid salt of copper, thereby to oxidize the aromatic compound to a corresponding aromatic hydroperoxide, wherein the liquid phase catalytic oxidation is carried out while maintaining the catalyst concentration in the liquid phases at 0.005 to 10 ppm as the copper atom and the pH value of the basic aqueous phase at 7.6 to 10. According to this process, by adoption of the above-mentioned specific catalyst concentration and pH value in combination, the rate of oxidation of the aromatic compound is increased and the selectivity to the hydroperoxide is improved.

    Abstract translation: 公开了一种制备芳族氢过氧化物的方法，包括在铜化合物催化剂存在下，将含有含有仲烷基的芳族化合物的油相和搅拌下的碱性水相的两相液相与含分子氧的气体接触 例如铜的无机盐或有机酸盐，从而将芳族化合物氧化成相应的芳香族氢过氧化物，其中进行液相催化氧化，同时将液相中的催化剂浓度保持在0.005〜10ppm，作为铜 原子，碱性水相的pH值为7.6〜10。根据该方法，通过组合使用上述特定催化剂浓度和pH值，芳香族化合物的氧化速率提高，选择性 氢过氧化物得到改善。

    Method of recovering dialkylbenzene dihydroperoxide
    5.
    发明授权
    Method of recovering dialkylbenzene dihydroperoxide 失效
    回收二烷基苯二氢过氧化物的方法

    公开(公告)号：US4230890A

    公开(公告)日：1980-10-28

    申请号：US926139

    申请日：1978-07-19

    Applicant: Ward J. Burkholder

    Inventor： Ward J. Burkholder

    IPC: C07C409/12

    CPC classification number: C07C409/12 ,  C07C407/00 ,  C07C407/003

    Abstract: Separation of diisopropylbenzene dihydroperoxide from a diisopropylbenzene oxidation reaction mixture by treating the reaction mixture with concentrated alkali metal hydroxide and recovering the alkali metal salt of diisopropylbenzene dihydroperoxide in high purity and good yield, and subsequently converting the salt to diisopropylbenzene dihydroperoxide.

    Abstract translation: 通过用浓碱金属氢氧化物处理反应混合物并以高纯度和高收率回收二异丙苯二氢过氧化物的碱金属盐，然后将盐转化为二异丙苯二氢过氧化物，从二异丙基苯氧化反应混合物中分离出二异丙苯二氢过氧化物。

    Benzoic acid ester derivative
    6.
    发明授权
    Benzoic acid ester derivative 失效
    苯甲酸酯衍生物

    公开(公告)号：US4200763A

    公开(公告)日：1980-04-29

    申请号：US38257

    申请日：1979-05-11

    Applicant: Sheng-Hong A. Dai

    Inventor： Sheng-Hong A. Dai

    IPC: C07C409/08 ,  C07C409/12 ,  C07C69/78

    CPC classification number: C07C409/08 ,  C07C407/00 ,  C07C409/12

    Abstract: Isopropylphenyl esters are converted to di- or tri-hydric phenols via a novel autoxidation of the esters at high conversion rates to the corresponding hydroperoxyisopropylphenyl esters in the presence of a catalyst combination comprising at least two members selected from the group consisting of (i) a metal phthalocyanine; (ii) a di-tertiary alkyl peroxide; and (iii) a tertiary alkyl hydroperoxide.Rearrangement of the hydroperoxyisopropylphenyl esters to the corresponding hydroxyphenyl esters and the hydrolysis of the latter compounds provides the phenols in overall yields (from the starting esters) heretofore not obtainable. Novel bis(hydroperoxyisopropylphenyl)carbonates are described which are attractive intermediates for the intermediate bisphenol carbonate or the final hydroquinone hydrolysis product.

    Abstract translation: 在包含至少两种选自以下的成员的催化剂组合的存在下，通过将酯以高转化率的新型自氧化转化为相应的氢过氧化异丙基苯基酯将异丙基苯基酯转化为二 - 或三 - 金属酞菁 （ii）二叔烷基过氧化物; 和（iii）叔烷基氢过氧化物。 氢过氧化异丙基苯基酯与相应的羟基苯基酯的重排和后者化合物的水解提供了迄今为止不可获得的总产率的苯酚（来自起始酯）。 描述了新型双（氢过氧化异丙基苯基）碳酸酯，其是中间体双酚碳酸酯或最终氢醌水解产物的有吸引力的中间体。

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