Iodine-Promoted Radical Cyclization in   Water: A Selective Reaction of 1,6-Enynes with Sulfonyl Hydrazides

Lan Zheng, Zhao-Zhao Zhou, Yu-Tao He,   Lian-Hua Li, Jun-Wei Ma, Yi-Feng Qiu, Ping-Xin Zhou, Xue-Yuan Liu, Peng-Fei   Xu, and Yong-Min Liang*

https://doi.org/10.1021/acs.joc.5b02161