暴露于空气中可促进由聚乙二醇稳定的铜纳米颗粒催化的铜催化的叠氮化物-炔烃环加成反应。
Exposure to air boosts CuAAC reactions catalyzed by PEG-stabilized Cu nanoparticles.
作者信息
Fu Fangyu, Martinez Angel, Wang Changlong, Ciganda Roberto, Yate Luis, Escobar Ane, Moya Sergio, Fouquet Eric, Ruiz Jaime, Astruc Didier
机构信息
ISM, UMR CNRS No. 5255, Univ. Bordeaux, 33405 Talence Cedex, France.
出版信息
Chem Commun (Camb). 2017 May 11;53(39):5384-5387. doi: 10.1039/c7cc02504a.
New PEG-stabilized CuNP catalysts are designed upon Cu(ii) reduction with sodium naphthalenide in MeCN followed by simple purification using the salting-out effect. Their catalytic activity in CuAAC is boosted upon 30 min exposure to air, producing CuO NPs. These NPs are also supported on SBA-15, providing excellent recyclable heterogeneous catalysts that are applied in low amounts for efficient "click" functionalization.
新型聚乙二醇稳定的铜纳米颗粒催化剂是通过在乙腈中用萘钠还原铜（II），然后利用盐析效应进行简单纯化而设计的。在暴露于空气中30分钟后，它们在铜催化的叠氮化物-炔烃环加成反应中的催化活性增强，生成氧化铜纳米颗粒。这些纳米颗粒也负载在SBA-15上，提供了优异的可回收多相催化剂，可少量用于高效的“点击”功能化反应。
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