A substituent- and temperature-controllable NHC-derived zwitterionic catalyst enables CO<sub>2</sub> upgrading for high-efficiency construction of formamides and benzimidazoles
Zhaozhuo Yu, Zhengyi Li, Lilong Zhang, Kaixun Zhu, Hongguo Wu, Hu Li, Song Yang
Abstract
An efficient catalytic system for the construction of various formamides and benzimidazoles with good yields of up to 96% and 98% was developed using the C1 source CO 2 and the stable catalyst NHC-CO 2 , and an interesting catalytic mechanism was reported.
Topics & Concepts
FormamidesChemistrySubstituentCarbeneCatalysisNucleophileFormylationAlkylOrganic chemistryAmine gas treatingHydrosilylationCombinatorial chemistryCarbon dioxide utilization in catalysisAsymmetric Hydrogenation and CatalysisN-Heterocyclic Carbenes in Organic and Inorganic Chemistry