The synthesis of heavily substituted chiral cyclopropanes presents a significant challenge in organic chemistry due to the inherent strain and steric congestion of these three-membered rings. Here, the authors report a highly enantioselective intramolecular cyclopropanation of trisubstituted alkenes via a sulfoxonium-Rh-carbene intermediate, resulting in the formation of highly congested penta-substituted chiral cyclopropanes.
- Yajie Xing
- Yuqi Fang
- Yong Huang