Rh<sup>II</sup>-Catalyzed [3+2] Cycloaddition of 2 <i>H</i>-Azirines with<i>N</i>-Sulfonyl-1,2,3-Triazoles
作者:Yun-Zhou Zhao、Hai-Bin Yang、Xiang-Ying Tang、Min Shi
DOI:10.1002/chem.201406460
日期:2015.2.23
RhII‐catalyzed intermolecular [3+2] cycloaddition of 2 H‐azirines with N‐sulfonyl‐1,2,3‐triazoles is disclosed, in which a series of fully functionalized pyrroles is produced via rhodium azavinyl carbene intermediates. A distinct feature of this reaction is that the azavinyl carbene serves as a [2 C] equivalent, instead of as [1 C] or aza‐[3 C] synthons, which have been reported previously in cyclopropanations
Rh II催化的2 H-叠氮基与N-磺酰基-1,2,3-三唑的分子间[3 + 2]环加成反应 ,其中通过氮杂乙烯基卡宾铑中间体生产了一系列功能完全的吡咯。该反应的显着特征是,氮杂乙烯基卡宾可作为[2 C]等效物,而不是先前在环丙烷和[3+ n ]环加成中报道的[1 C]或aza- [3 C]合成子。。此外,该方法学也已成功应用于URB447的全合成以及阿托伐他汀(立普妥)的正式合成。