Process for the autoxidation of an isopropylphenyl ester
    1.
    发明授权
    Process for the autoxidation of an isopropylphenyl ester 失效
    异丙基苯基酯的自氧化方法

    公开(公告)号:US4164510A

    公开(公告)日:1979-08-14

    申请号:US879788

    申请日:1978-02-21

    申请人: Sheng-Hong A. Dai

    发明人: Sheng-Hong A. Dai

    摘要: Isopropylphenyl esters are converted to di- or trihydric 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.

    摘要翻译: 在包含至少两种选自(i)金属酞菁的组分的催化剂组合物存在下,通过将酯以高转化率的新型自氧化转化成相应的氢过氧化异丙基苯基酯,将异丙基苯基酯转化成二元或三元酚 ; (ii)二叔烷基过氧化物; 和(iii)叔烷基氢过氧化物。

    Benzoic acid ester derivative
    2.
    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

    申请人: Sheng-Hong A. Dai

    发明人: Sheng-Hong A. Dai

    摘要: 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.

    摘要翻译: 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。

    Hydroperoxyisopropylphenyl carbonates
    3.
    发明授权
    Hydroperoxyisopropylphenyl carbonates 失效
    氢过氧化异丙基苯基碳酸酯

    公开(公告)号:US4202833A

    公开(公告)日:1980-05-13

    申请号:US38133

    申请日:1979-05-11

    申请人: Sheng-Hong A. Dai

    发明人: Sheng-Hong A. Dai

    摘要: Isopropylphenyl esters are converted to di- or trihydric 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.

    摘要翻译: 在包含至少两种选自(i)金属酞菁的组分的催化剂组合物存在下,通过将酯以高转化率的新型自氧化转化成相应的氢过氧化异丙基苯基酯,将异丙基苯基酯转化成二元或三元酚 ; (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。

    Process for the autoxidation of cyclohexylbenzene to form
cyclohexylbenzene hydroperoxide
    4.
    发明授权
    Process for the autoxidation of cyclohexylbenzene to form cyclohexylbenzene hydroperoxide 失效
    环己基苯自身氧化形成环己基苯氢过氧化物的方法

    公开(公告)号:US4282383A

    公开(公告)日:1981-08-04

    申请号:US861757

    申请日:1977-12-19

    摘要: Cyclohexylbenzene and dicyclohexylbenzenes are converted to the corresponding hydroperoxides in the presence of t-butyl, cumene, or p-diisopropylbenzene hydroperoxides and a free radical initiator. The use of the combination of hydroperoxide and free radical initiator enables the reaction to be carried out at lower temperatures (80.degree.-105.degree. C.) than can be employed with hydroperoxides or free radical initiators alone and gives high (90%) selectivity and good conversion (20% or higher).

    摘要翻译: 在叔丁基异丙基苯或对二异丙基苯氢过氧化物和自由基引发剂存在下,将环己基苯和二环己基苯转化为相应的氢过氧化物。 使用氢过氧化物和自由基引发剂的组合使得反应可以在比单独使用氢过氧化物或自由基引发剂的较低温度(80-105℃)下进行,并且具有高(90%)选择性和 良好转换(20%以上)。