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·1904·                            精细化工   FINE CHEMICALS                                  第 35 卷

            表 4  Ni 2 Mg 2 Ga-LDH 在其他醇类化合物氧化反应中的性能                 (3)Ni 2 Mg 2 Ga-LDH 在醇的选择性氧化反应中
            Table 4    Catalytic oxidation of varied alcohols under Ni 2 Mg 2 Ga-   表现出较高的催化活性,优化条件下,苯甲醇的收
                   LDH
                                                               率达到 99%以上;重复使用 4 次后,催化剂的活性
              序号       底物          产物       时间/h    收率/%
                                                               无明显下降。
               1                              4      91            (4)NiMgGa 类水滑石催化剂在芳香醇的选择

                                                               性氧化反应中具有较高的活性,而在脂肪醇的分子
               2                              24     95
                                                               氧氧化中活性较低。
               3                              16     85        参考文献:

                                                               [1]   Wu Xingan (吴鑫干), Yin Juanjuan (尹娟娟), Hu Zaijun (胡在君).
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                                                                   et al. Catalyzed oxidation  of alcohols by 2,2,6,6-tetramethyl-N-
               6                              16     >99           peridinyloxy with sodium bromate and ferric  chloride as
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                 在表 4 的氧化反应中,未发现其他产物。对于                            oxidation[J]. Catalysis Letters, 2017, 147(1): 196-203.
            苯甲醇衍生物,对位被给电子基团(序号 1~2)和                           [6]   Liu C,  Wu Q, Peng J J,  et al. Mesostructure controllable ZSM-5
                                                                   single crystals supported Pd/transition  metal oxides: Efficient and
            吸电子基团(序号 3~5)取代的底物均能顺利地氧                               reusable catalysts for selective oxidation under aerobic conditions[J].
            化成对应的醛,其中,对硝基苯甲醇表现出最高的                                 Journal of Porous Materials, 2017, 24(2): 297-303.
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            反应活性(序号 4),可能是由于硝基的强吸电性促
                                                                   carbonyl compounds catalyzed by  N-hydroxyphthalimide (NHPI)
            进 O—H 键的活化。与苯甲醇类似,2-吡啶甲醇在                              combined with CoTPP-Zn 2Al-LDH[J]. Journal of Chemical
            反应 16 h 后转化率可达到 98%(序号 6)。对于邻位                         Sciences, 2017, 129(3): 295-299.
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            取代的苯甲醇,其活性均有所降低(序号 7~8),可                              alcohol to carbonyl compounds over CoFe hydrotalcites[J]. RSC
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            吸附。在 3-苯基-2-丙烯醇的氧化反应中,底物在 4 h
                                                                   Preparation of GO doped Zn-Al LDHs supported palladium gold
            内基本完全转化(序号 9)。然而,此催化体系在脂                               catalysts and their catalytic performances[J]. Chemical Industry and
            肪醇的氧化反应中,活性较低,反应 48 h 后,3,                             Engineering Progress (化工进展), 2017, 36(11): 4087-4092.
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            7-二甲基-6-辛烯-1-醇的转化率只有 8%(序号 10),                        alcohol in water catalyzed by gold nanoparticles supported on
            这可能主要因为脂肪醇 α-H 的活性比芳香醇的低,                              imidazole  containing crosslinked polymer[J]. Applied Catalysis A:
            影响了氧化反应过程中 α-C—H 的断裂。                                  General, 2017, 536: 27-34.
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                                                                   using precious metals supported on hydrotalcite under solvent- and
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                 (1)采用共沉淀法制备了系列 Mg 改性的 NiGa                        hydrotalcite-type anionic clay catalyst for the oxidation of alcohols
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            类水滑石催化剂,结构表征结果表明样品均形成了                                 Chemical, 2005, 236(1/2): 206-215.
            类水滑石结构。                                            [13]  Sun F A, Zhou J C, Zhou W Y, et al. Efficient aerobic oxidation of
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                                                                   additives[J]. New Journal of Chemistry, 2018, 42: 4029-4235.
            催化剂表面碱性位的数量及其在醇分子氧氧化制醛                             [14]  Zhou W Y, Tao Q Y, Pan J G, et al. Effect of basicity on the catalytic
            反应中的催化性能。与 Ni 2 Ga-LDH 相比,Ni 2 Mg 2 Ga-                properties of Ni-containing hydrotalcites in the aerobic oxidation of
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            LDH 表面碱性位含量由 0.20 mmol/g 升至 0.26 mmol/g,               255-265.
            苯甲醇的转化率由 91.6%提高至 99%。                                                         (下转第 1941 页)
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