Highly enantioselective Rh-catalyzed asymmetric reductive dearomatization of multi-nitrogen polycyclic pyrazolo[1,5-<i>a</i>]pyrimidines
Chaochao Xie, Guiying Xiao, Qian‐Ling Guo, Xiaoxue Wu, Guofu Zi, Wanjian Ding, Guohua Hou
Abstract
A highly enantioselective Rh-catalyzed reductive dearomatization of pyrazolo[1,5- a ]pyrimidines has been realized for the first time by two strategies to afford chiral 4,5,6,7-tetrahydropyrazolo[1,5- a ]pyrimidines with excellent enantioselectivities, up to 98% ee.
Topics & Concepts
Enantioselective synthesisRhodiumCatalysisChemistryCombinatorial chemistryOrganic chemistryStereochemistryAsymmetric Hydrogenation and CatalysisCyclopropane Reaction MechanismsCatalytic C–H Functionalization Methods