Copper-Catalyzed Cycloadditions of Diazo Compounds with Imidazolidines/Hexahydropyrimidines for the Syntheses of N-Heterocycles
Yuqi Zhu, Liangliang Yang, Xue Zhang, Wendi Xu, Jieyin He, Haiyang Wang, Ming Lang, Shiyong Peng
Abstract
= 5, 6) cycloadditions of diazo compounds with imidazolidines/hexahydropyrimidines, thus providing a general, economical, and efficient route to construct different sized (six- to nine-membered) diaza-heterocycles in moderate to excellent yields under mild reaction conditions. This strategy features the use of copper catalyst to accomplish such diverse annulations and the utilization of imidazolidines/hexahydropyrimidines as stable 1,5-/1,6-dipoles.
Topics & Concepts
DiazoChemistryCatalysisCopperCombinatorial chemistryOrganic chemistryCyclopropane Reaction MechanismsCatalytic C–H Functionalization MethodsCatalytic Alkyne Reactions