A Tandem Dehydrogenation‐Driven Cross‐Coupling between Cyclohexanones and Primary Amines for Construction of Benzoxazoles
作者:Biping Xu、Weiping Su
DOI:10.1002/anie.202203365
日期:2022.7.25
A tandem dehydrogenation-driven cross-coupling reactionbetweencyclohexanones and primary amines is reported for benzoxazole synthesis by TEMPO's multiple reactivity modes (oxygenation and desaturation). This transition metal-free protocol features broad substrate scope, high functional group tolerance, and is operationally simple, therefore enabling late-stage functionalization and rapid synthesis
据报道,通过 TEMPO 的多种反应模式(氧化和去饱和)合成苯并恶唑,环己酮和伯胺之间的串联脱氢驱动的交叉偶联反应。这种无过渡金属方案具有广泛的底物范围、高官能团耐受性和操作简单,因此能够实现生物活性化合物的后期功能化和快速合成,包括结构复杂的上市药物和天然产物。