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    • 5. 发明公开
    • Oxygenation catalyst and process for producing a ketone using the same
    • Oxygenierungskatalysator和Verfahren zur Herstellung einer Ketone damit
    • EP0878234A2
    • 1998-11-18
    • EP98108532.7
    • 1998-05-11
    • Daicel Chemical Industries, Ltd.Ishii, Yasutaka
    • Ishii, YasutakaNakano, Tatsuya
    • B01J31/02
    • B01J31/34B01J31/006B01J31/0247B01J31/2208B01J31/36B01J2231/70B01J2531/56C07C29/50C07C45/33C07C45/34C07C45/36C07C49/453C07C2603/74C07C35/37
    • A substrate is contacted with oxygen in the presence of the imide compound shown by the following formula (1) (N-hydroxyphthalimide) and a strong acid, or the imide compound, the strong acid and a co-catalyst (e.g., a transition metal compound) to oxygenate the substrate with high conversion and selectivity:
         wherein R 1 and R 2 represent a substituent such as a hydrogen atom or a halogen atom, an alkyl group, an aryl group or a cycloalkyl group, or R 1 and R 2 may bond together to form a double bond or an aromatic or nonaromatic ring, X is O or OH, and n is 1 to 3.
      The substrate comprises, for example, at least one compound selected from (a) a compound having a methyl group or a methylene group at an adjacent site of an unsaturated bond, (b) a homo- or hetero cyclic compound having a methylene group, (c) a compound having a methine carbon atom, (d) a compound having a methyl group or a methylene group at an adjacent site of an aromatic ring and (e) a compound having a methyl group or a methylene group at an adjacent site of a carbonyl group.
    • 存在下式(1)所示的酰亚胺化合物(N-羟基邻苯二甲酰亚胺)和强酸或酰亚胺化合物,强酸和助催化剂(例如过渡金属 化合物)以高转化率和选择性对底物进行含氧化:其中R 1和R 2表示取代基如氢原子或卤素原子,烷基,芳基或环烷基, 或R 1和R 2可以键合在一起形成双键或芳族或非芳族环,X为O或OH,n为1至3.基材包含例如至少一种选自 (a)在不饱和键的相邻位置具有甲基或亚甲基的化合物,(b)具有亚甲基的均聚或杂环化合物,(c)具有次甲基碳原子的化合物,( d)在芳环的相邻位置具有甲基或亚甲基的化合物和(e)具有甲基的化合物 基团或在羰基的相邻位置的亚甲基。