A Cooperative Catalytic System of Platinum/Iridium Alloyed Nanoclusters and a Dimeric Catechol Derivative: An Efficient Synthesis of Quinazolines Through a Sequential Aerobic Oxidative Process
作者:Hao Yuan、Woo-Jin Yoo、Hiroyuki Miyamura、Shū Kobayashi
DOI:10.1002/adsc.201200880
日期:2012.11.12
A cooperative catalytic system of heterogeneous polymer-supported bi-metallic platinum/iridium (Pt/Ir) alloyed nanoclusters and 5,5′,6,6′-tetrahydroxy-3,3,3′,3′-tetramethyl-1,1′-spiro-bisindane (TTSBI) enabled the facile preparation of quinazoline derivatives with low catalyst loadings and broad substrate scope under mild aerobic oxidative conditions. The ability to perform the reaction in gram-scale
多相聚合物负载的双金属铂/铱(Pt / Ir)合金纳米簇与5,5',6,6'-四羟基-3,3,3',3'-四甲基-1,1的协同催化体系′-螺双茚满(TTSBI)在温和的需氧氧化条件下,可轻松制备具有低催化剂负载量和宽底物范围的喹唑啉衍生物。在克规模和露天条件下进行反应的能力突显了这种协同催化系统的合成应用。