Synthesis of Benzofuran Derivatives by Diphenylperhydroindolinol Silyl Ether-Catalyzed Asymmetric [3 +3] Aza-cyclization of α,β-Unsaturated Aldehydes
Huiling Wen, Nianhua Luo, Lu Ouyang, Renshi Luo
Chinese Journal of Organic Chemistry . 2021, (1): 348 -356 .  DOI: 10.6023/cjoc202006036