Metal-free C–H Activation over Graphene Oxide toward Direct Syntheses of Structurally Different Amines and Amides in Water
作者:Prashant Shukla、Ambika Asati、Smita R. Bhardiya、Manorama Singh、Vijai K. Rai、Ankita Rai
DOI:10.1021/acs.joc.0c02219
日期:2020.12.4
Unprecedented metal-free synthesis of a variety of amines and amides is reported via amination of C(sp3)–H and C(sp2)–H bonds. The strategy involves graphene-oxide/I2-catalyzed nitrene insertion using PhINTs as a nitrene (NT) source in water at room temperature. A wide range of structurally different substrates, viz., cyclohexane, cyclic ethers, arenes, alkyl aromatic systems, and aldehydes/ketones
据报道,通过胺化C(sp 3)–H和C(sp 2)–H键,空前合成了多种胺和酰胺。该策略涉及在室温下使用PhINTs作为水中的腈(NT)源使用氧化石墨烯/ I 2催化的腈插入。尽管具有较低的收率,但已成功地使用各种结构不同的底物,即环己烷,环醚,芳烃,烷基芳族体系和具有α-苯环的醛/酮,以高收率获得了相应的腈插入产物在少数情况下。所设想的方法在操作简便性,无金属催化,使用水作为溶剂,环境反应条件和催化剂的可重复使用性方面均优于其他方法。