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
公开了一种新型的铑(II)催化的N-磺酰基1,2,3-三唑类亚甲基环丙烷(MCPs)串联串联异构化反应。该反应通过铑亚氨基卡宾中间体产生一系列高度官能化的多环N杂环。这种不同的合成的显着特征是不同类型的底物控制反应路径。此外,还报道了这些产物的一些有趣的转化,以构建二氮杂双环[3.2.1]辛烷衍生物。