Expanding applications of copper-based metal–organic frameworks in catalysis: Oxidative C–O coupling by direct C–H activation of ethers over Cu2(BPDC)2(BPY) as an efficient heterogeneous catalyst
作者:Nam T.S. Phan、Phuong H.L. Vu、Tung T. Nguyen
DOI:10.1016/j.jcat.2013.06.006
日期:2013.10
measurements. The Cu-MOF could be used as an efficient heterogeneous catalyst for the copper-catalyzed cross-dehydrogenative coupling reaction of ethers with 2-carbonyl-substituted phenols. The Cu2(BPDC)2(BPY) exhibited significantly higher catalytic activity than that of other Cu-MOFs such as Cu3(BTC)2, Cu(BDC), and Cu(BPDC). The Cu-MOF also offered advantages over several copper salts such as CuCl2, CuCl, CuI
合成了晶体多孔金属-有机骨架Cu 2(BPDC)2(BPY),并通过X射线粉末衍射(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM),热重分析(TGA)对其进行了表征,傅立叶变换红外(FT-IR)光谱,原子吸收分光光度法(AAS),氢程序升温还原(H 2 -TPR)和氮物理吸附测量。Cu-MOF可用作醚与2-羰基取代的酚的铜催化的交叉脱氢偶联反应的有效多相催化剂。Cu 2(BPDC)2(BPY)的催化活性明显高于其他Cu-MOF,例如Cu 3(BTC)2,Cu(BDC)和Cu(BPDC)。就催化活性和催化剂可再利用性而言,Cu-MOF还提供了优于几种铜盐的优势,例如CuCl 2,CuCl,CuI,Cu(NO 3)2和Cu(OAc)2。据我们所知,在以前的文献中没有提到过在氧化条件下使用非均相催化剂通过C–H活化而使醚类与2-羰基取代的苯酚发生交叉脱氢偶联反应。