Rhodium(III)-Catalyzed [3+2]/[5+2] Annulation of 4-Aryl 1,2,3-Triazoles with Internal Alkynes through Dual C(sp<sup>2</sup>)H Functionalization
作者:Yuan Yang、Ming-Bo Zhou、Xuan-Hui Ouyang、Rui Pi、Ren-Jie Song、Jin-Heng Li
DOI:10.1002/anie.201501260
日期:2015.5.26
A rhodium(III)‐catalyzed [3+2]/[5+2] annulation of 4‐aryl 1‐tosyl‐1,2,3‐triazoles with internal alkynes is presented. This transformation provides straightforward access to indeno[1,7‐cd]azepine architectures through a sequence involving the formation of a rhodium(III) azavinyl carbene, dual C(sp2)H functionalization, and [3+2]/[5+2] annulation.
介绍了铑(III)催化的4-芳基1-甲苯磺酰基-1,2,3-三唑与内部炔烃的[3 + 2] / [5 + 2]环化反应。这种转变提供了茚并直接的接入[1,7- CD ]通过序列氮杂架构涉及铑的形成(III)氮杂乙烯基卡宾,双C(SP 2) ħ官能化,和[3 + 2] / [5 +2]。