Fe-BPsalan Complex-Catalyzed Asymmetric [4 + 2] Cycloaddition of Cyclopentadiene with α,β-Unsaturated Heterocycles
作者:Kai-Ge Chen、Hao Lu、Yi-Ming Zhou、Xiao-Long Wan、Hao-Yang Wang、Zhen-Jiang Xu、Hai-Ming Guo、Chi-Ming Che
DOI:10.1021/acs.joc.1c02798
日期:2022.7.1
An efficient iron-catalyzed asymmetric [4 + 2] cycloaddition of cyclopentadiene with α,β-unsaturated acyl imidazoles or 2-cinnamoylisoindoline-1,3-dione derivatives was developed to afford the addition products in high yield and selectivity. Interestingly, the absolute structures of the addition products were controlled by the auxiliaries via different coordination modes with the same type of catalyst
开发了一种有效的铁催化不对称 [4 + 2] 环戊二烯与 α,β-不饱和酰基咪唑或 2-cinnamoylisoindoline-1,3-dione 衍生物的环加成反应,以高产率和选择性提供加成产物。有趣的是,加成产物的绝对结构由助剂通过不同的配位模式与相同类型的催化剂控制。