Photocatalytic Intramolecular Alkene Hydroamination of <i>N</i>-Alkoxy Ureas: An Approach to Imidazolinones
作者:Kui Hu、Yuan-Xiang He、Zhen-Yao Lei、Yu Ran、Shu Geng、Li-Na Chen、Li Pan、Yu-Long Li、Feng Huang
DOI:10.1021/acs.joc.3c01420
日期:2023.9.1
in good yields by intramolecular hydroamination of N-alkoxy ureas in the presence of an organic photocatalyst and an inorganic base. In this reaction, the N-alkoxy urea anion generated by deprotonation undergoes photocatalyzed single-electron-transfer oxidation to generate the corresponding radical, which cyclizes to afford the imidazolinone ring. This new protocol grants access to an array of complex
在有机光
催化剂和
无机碱存在下,通过N-烷
氧基
脲的分子内
氢胺化,以良好的收率获得
咪唑啉酮。在该反应中,去质子化产生的N-烷
氧基
脲阴离子经过光催化单电子转移
氧化产生相应的自由基,自由基环化形成
咪唑啉酮环。这个新协议允许访问一系列包含特权
咪唑啉酮核心的复杂分子。