N-Acetylimidazole is a commonly used acylating reagent. When it is allowed to react with several typical enamines, amides are produced rather than the expected acylated enamines.
N-乙酰胺基咪唑是常用的酰化剂。当使其与几种典型的烯胺反应时,会生成酰胺,而不是预期的酰化烯胺。
Chemoselective γ‐Oxidation of β,γ‐Unsaturated Amides with TEMPO
A chemoselective and robust protocol for the γ-oxidation of β,γ-unsaturated amides is reported. In this method, electrophilic amide activation, in a rare application to unsaturated amides, enables a regioselective reaction with TEMPO resulting in the title products. Radical cyclisation reactions and oxidation of the synthesised products highlight the synthetic utility of the products obtained.
报道了一种用于 β,γ-不饱和酰胺的 γ-氧化的化学选择性和稳健的方案。在这种方法中,亲电酰胺活化(在罕见的不饱和酰胺应用中)能够与 TEMPO 进行区域选择性反应,从而产生标题产物。合成产物的自由基环化反应和氧化突出了所得产物的合成效用。