A Four-Component Reaction for the Synthesis of Dispirotetrahydro-quinoline-bis(1,3-dioxane-4,6-dione) Derivatives Catalyzed by Tartaric Acid
Zhaohui Xu, Huatao Ye, Wenfeng Zhang, Qiang Xiao
Chinese Journal of Organic Chemistry . 2021, (5): 2127 -2133 .  DOI: 10.6023/cjoc202008051