Rhodium(II)-Catalyzed Intramolecular Cycloisomerizations of Methylenecyclopropanes with<i>N</i>-Sulfonyl 1,2,3-Triazoles
作者:Kai Chen、Zi-Zhong Zhu、Yong-Sheng Zhang、Xiang-Ying Tang、Min Shi
DOI:10.1002/anie.201402803
日期:2014.6.23
A novel rhodium(II)‐catalyzed tandem cycloisomerization of methylenecyclopropanes (MCPs) with N‐sulfonyl 1,2,3‐triazoles is disclosed. The reaction produces a series of highly functionalized polycyclic N heterocycles via a rhodium imino carbene intermediate. A distinct feature of this divergent synthesis is that different types of substrates control the reaction pathways. Moreover, several interesting