Single–carbon atom transfer to α,β-unsaturated amides from N-heterocyclic carbenes
作者:Miharu Kamitani、Bunta Nakayasu、Hayato Fujimoto、Kosuke Yasui、Takuya Kodama、Mamoru Tobisu
DOI:10.1126/science.ade5110
日期:2023.2.3
Single–carbon atom transfer reactions are lacking in organic synthesis, partly because of the absence of atomic carbon sources under standard solution-phase conditions. We report here that N-heterocyclic carbenes can serve as atomic carbon donors through the loss of a 1,2-diimine moiety. This strategy is applicable to single–carbon atom transfer to α,β-unsaturated amides, which can be converted into
有机合成中缺乏单碳原子转移反应,部分原因是在标准溶液相条件下缺乏原子碳源。我们在此报告 N-杂环卡宾可以通过失去 1,2-二亚胺部分作为原子碳供体。该策略适用于单碳原子转移到 α,β-不饱和酰胺,通过一次操作将四个单键形成到一个碳中心,从而将其转化为同系化 γ-内酰胺。