A wide range of azolo[1,3,5]triazines were obtained by Rh(III)-catalyzed annulation of N-azolo imines and dioxazolones. The reaction proceeds by the first catalytic C-H amidation of an imidoyl C-H bond followed by cyclodehydration. Good yields were obtained for N-azolo imines derived from aminoazoles and aromatic and heteroaromatic aldehydes. A range of dioxazolone amidating reagents were employed to introduce aryl, heteroaryl, and alkyl substituents. The reaction was also performed with a benchtop setup at 1 mmol scale using microwave heating.
A wide range of azolo[1,3,5]triazines were obtained by n class="Chemical">Rh(III)-catalyzed annulation of N-azolo imines and dioxazolones. The reaction proceeds by the first catalytic C-H amidation of an imidoyl C-H bond followed by cyclodehydration. Good yields were obtained for N-azolo imines derived from aminoazoles and aromatic and heteroaromatic aldehydes. A range of dioxazolone amidating reagents were employed to introduce aryl, heteroaryl, and alkyl substituents. The reaction was also performed with a benchtop setup at 1 mmol scale using microwave heating.
Authors: Pascal Dubé; Noah F Fine Nathel; Michael Vetelino; Michel Couturier; Claude Larrivée Aboussafy; Simon Pichette; Matthew L Jorgensen; Mark Hardink Journal: Org Lett Date: 2009-12-17 Impact factor: 6.005
Authors: Kim Søholm Halskov; Michael R Witten; Gia L Hoang; Brandon Q Mercado; Jonathan A Ellman Journal: Org Lett Date: 2018-03-27 Impact factor: 6.005