作者:Yi-Xiong Dong、Chun-Lin Zhang、Zhong-Hua Gao、Song Ye
DOI:10.1021/acs.orglett.3c00006
日期:2023.2.10
alkene-tethered α-imino-oxy acids and acyl imidazoles. The corresponding substituted 3,4-dihydro-2H-pyrroles were afforded in moderate to good yields with good to high diastereoselectivities in most cases. The reaction involves the 5-exo-trig radical cyclization of an alkene-tethered iminyl radical and the following coupling with a ketyl radical from acyl imidazole under NHC catalysis.
通过使用烯烃束缚的 α-亚氨基-氧酸和酰基咪唑,开发了通过光氧化还原 N-杂环卡宾催化的烯烃亚氨基酰化。在大多数情况下,相应的取代 3,4-二氢-2 H-吡咯以中等到良好的产率和良好到高的非对映选择性提供。该反应涉及烯烃束缚的亚胺基自由基的 5- exo -trig 自由基环化,以及随后在 NHC 催化下与来自酰基咪唑的羰基自由基偶联。