N-Heterocyclic Carbene-Catalyzed [3+2] Cycloaddition to Highly Diastereoselective Synthesis of Spirooxindole-Fused Cyclopentanes
Gao Yuan, Liu Yan, Li Shiwu, Tang Tiansheng, Meng Yukun, Zhao Zhifei
Chinese Journal of Organic Chemistry . .  DOI: 10.6023/cjoc202507009