One-Pot Asymmetric Synthesis of Spiropyrazolone-Linked Cyclopropanes and Benzofurans through a General Michael Addition/Chlorination/Nucleophilic Substitution Sequence

Hong Lu,§ Huan-Xin Zhang,§ Chang-Yin Tan, Jin-Yu Liu, Hao Wei, and Peng-Fei Xu*

https://doi.org/10.1021/acs.joc.9b01454