Organic Letters, Год журнала: 2025, Номер unknown
Опубликована: Апрель 16, 2025
A copper-catalyzed asymmetric cross 1,3-dipolar cycloaddition between 2-aminoallyl zwitterions generated in situ from ethynyl methylene cyclic carbamates and N,N'-cyclic azomethine imines has been realized. The reaction, which utilizes a commercially available chiral tridentate N-ligand, delivers range of functionally rich hexahydro-8H-pyrazolo[1,2-a][1,2,4]triazin-8-one derivatives 51-99% yields with good to high enantioselectivities (44-95% ee).
Язык: Английский