Synthesis of Fluoren-9-ones and Ladder-Type Oligo-<i>p</i>-phenylene Cores via Pd-Catalyzed Carbonylative Multiple C–C Bond Formation
作者:Juan Song、Fuliang Wei、Wei Sun、Ke Li、Yanan Tian、Chao Liu、Yali Li、Linghai Xie
DOI:10.1021/acs.orglett.5b00680
日期:2015.5.1
been developed via an efficient Pd-catalyzed carbonylative multiple C–C bond formation. Under a CO atmosphere, using commercially available aryl halides and arylboronic acids as substrates, this three-component reaction proceeded smoothly in moderate to excellent yields with good functional-group compatibility. The mechanistic investigations suggested a sequential process for the reaction that forms o-bromobiaryls
通过有效的Pd催化的羰基化多个C–C键的形成,已开发出一种新的途径来取代各种9-9取代的芴。在CO气氛下,使用可商购的芳基卤化物和芳基硼酸作为底物,该三组分反应以中等至优异的收率顺利进行,并具有良好的官能团相容性。机理研究表明,反应的顺序过程是在第一步中形成邻溴代双芳基,然后进行环羰基化反应。该化学方法已成功地扩展到构建梯型低聚对亚苯基核心。