Ruthenium-Catalyzed Alkyne Annulations with Substituted 1<i>H</i>-Pyrazoles by C–H/N–H Bond Functionalizations
作者:Wenbo Ma、Karolina Graczyk、Lutz Ackermann
DOI:10.1021/ol303083n
日期:2012.12.21
Cationic ruthenium(II) complexes allowed for highly efficient oxidative annulations of aryl- and alkyl-substituted alkynes by 5-aryl-1H-pyrazoles. The C-H/N-H bond functionalization strategy furthermore proved applicable to the high-yielding activation of heteroaryl as well as alkenyl C-H bonds.