The (Porphyrin)ruthenium-Catalyzed Aziridination of Olefins Using Aryl Azides as Nitrogen Sources
作者:Simone Fantauzzi、Emma Gallo、Alessandro Caselli、Cristiana Piangiolino、Fabio Ragaini、Sergio Cenini
DOI:10.1002/ejoc.200700678
日期:2007.12
atom-efficient nitrene transfer reagents in the (porphyrin)ruthenium-catalyzed amination of olefins. Several azides, olefins and [Ru(porphyrin)CO] complexes were tested to investigate the scope and limits of the reaction. Quantitative yields and short reaction times were achieved by using terminal olefins and aryl azides bearing electron-withdrawing groups on the aryl moiety. The reactions were influenced
芳基叠氮化物已在(卟啉)钌催化的烯烃胺化反应中用作原子效率高的氮烯转移试剂。测试了几种叠氮化物、烯烃和 [Ru(卟啉)CO] 配合物,以研究反应的范围和限制。通过使用在芳基部分上带有吸电子基团的末端烯烃和芳基叠氮化物实现了定量产率和较短的反应时间。反应受空间因素的影响。内二取代烯烃表现出较低的反应性,三取代和四取代烯烃根本不反应。[Ru(TPP)CO](TPP = 四苯基卟啉二价阴离子)催化对硝基苯基叠氮化物对 α-甲基苯乙烯进行胺化,获得了非常高的转换数 (TON)。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451德国魏因海姆,2007)