Lanqin Liu, Yujie Zhi, Xiaoyan Hong, Mengyan Gao, Linyang Jiang, Ying Han, Hong Hou, Shaoqun Zhu
ABSTRACT Described herein is a chemoselective gem ‐dihalocyclopropanation of 1,3‐enynes by the utilization of Cs 2 CO 3 as a base to promote the gem ‐dihalocarbenes species generation, providing an efficient synthetic approach to various tetrasubstituted cyclopropanes. The present protocol with excellent functional group tolerance, scalability, as well as versatile transformation of the products.