The KI-catalyzed N-acylation of azoles via direct oxidative coupling of C–H and N–H bonds has been developed. It could be smoothly scaled up to gram synthesis of acyl azoles. The reaction occurred by the coupling of acyl radicals and azoles to form the acyl azole radical anion, followed by its further oxidation.
已开发出KI催化的偶
氮化物的N-酰基化反应,通过C–H和N–H键的直接氧化偶联。该反应可顺利放大至克级的酰基偶
氮化物合成。反应通过酰基自由基与偶
氮化物的偶联形成酰基偶
氮化物自由基阴离子,随后进一步氧化。