Carbene‐Catalyzed Enantioselective Aromatic N‐Nucleophilic Addition of Heteroarenes to Ketones
作者:Yonggui Liu、Guoyong Luo、Xing Yang、Shichun Jiang、Wei Xue、Yonggui Robin Chi、Zhichao Jin
DOI:10.1002/anie.201912160
日期:2020.1.2
and optical purities. Our reaction involves the formation of an unprecedented aza-fulvene-type acylazolium intermediate. A broad range of N-heteroaromatic aldehydes and electron-deficient ketone substrates works effectively in this transformation. Several of the chiral N,O-acetal products afforded through this protocol exhibit excellent antibacterial activities against Ralstonia solanacearum (Rs) and
杂芳基醛的芳族氮原子被卡宾催化剂活化以与酮亲电子试剂反应。以良好至优异的产率和光学纯度提供多功能的环状N,O-乙缩醛产物。我们的反应涉及空前的氮杂富烯型酰基唑鎓中间体的形成。各种各样的N-杂芳族醛和缺电子的酮底物可以有效地实现这种转化。通过该协议提供的几种手性N,O-乙缩醛产品表现出优异的抗青枯菌(Rsstonia solanacearum)的抗菌活性,在开发用于植物保护的新型农业化学品中具有重要的价值。