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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Au/MOF催化剂的制备、表征及其催化三组分偶联反应
DOI: 10.3724/SP.J.1088.2012.11112, PP. 833-841
Keywords: 金,负载型催化剂,金属有机骨架,IRMOF-3,三组分偶联反应,炔丙基胺
Abstract:
？采用后合成共价修饰法和一锅法分别制备了催化剂IRMOF-3-SI-Au(PS)和IRMOF-3-SI-Au(OP),运用X射线衍射、红外光谱、热重-差热分析、透射电镜以及程序升温还原对催化剂进行了表征,探索了这两种催化剂在醛、炔和胺三组分偶联反应中的催化性能,并推测了可能的反应机理.结果表明,两种催化剂对醛、炔和胺三组分偶联反应均具有较高的催化活性,产物炔丙基胺类选择性为100%,且可循环使用;结晶度较低的IRMOF-3-SI-Au(PS)的活性高于结晶度较高的IRMOF-3-SI-Au(OP);催化剂对芳香醛和脂肪醛以及环状胺均具有较高的催化活性,且对带有吸电子基团的芳香醛的活性高于带有供电子基团的.
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