生物废料玉米芯纤维素负载的聚羟肟酸铜配合物用于 Huisgen 反应：变废为宝的方法。
Bio-waste corn-cob cellulose supported poly(hydroxamic acid) copper complex for Huisgen reaction: Waste to wealth approach.
机构信息
Faculty of Industrial Sciences and Technology, University Malaysia Pahang, Gambang 26300, Pahang, Malaysia; Department of Chemistry, Jessore University of Science and Technology, Jessore 7408, Bangladesh.
Faculty of Science and Natural Resources, University Malaysia Sabah, Kota Kinabalu 88400, Sabah, Malaysia.
出版信息
Carbohydr Polym. 2017 Jan 20;156:175-181. doi: 10.1016/j.carbpol.2016.09.021. Epub 2016 Sep 13.
Corn-cob cellulose supported poly(hydroxamic acid) Cu(II) complex was prepared by the surface modification of waste corn-cob cellulose through graft copolymerization and subsequent hydroximation. The complex was characterized by IR, UV, FESEM, TEM, XPS, EDX and ICP-AES analyses. The complex has been found to be an efficient catalyst for 1,3-dipolar Huisgen cycloaddition (CuAAC) of aryl/alkyl azides with a variety of alkynes as well as one-pot three-components reaction in the presence of sodium ascorbate to give the corresponding cycloaddition products in up to 96% yield and high turn over number (TON 18,600) and turn over frequency (TOF 930h) were achieved. The complex was easy to recover from the reaction mixture and reused six times without significant loss of its catalytic activity.
玉米芯纤维素负载型聚（羟肟酸）Cu（II）配合物通过废弃玉米芯纤维素的表面改性，通过接枝共聚和随后的肟化反应制备。配合物通过 IR、UV、FESEM、TEM、XPS、EDX 和 ICP-AES 分析进行了表征。该配合物已被发现是高效催化剂，用于芳基/烷基叠氮化物与各种炔烃的 1,3-偶极 Huisgen 环加成（CuAAC）反应，以及在抗坏血酸钠存在下的一锅三组分反应，以高达 96%的收率和高周转数（TON 18,600）和周转频率（TOF 930h）得到相应的环加成产物。该配合物易于从反应混合物中回收，并重复使用六次而没有明显损失其催化活性。
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