Fig. 3: Scope of alkynes.
From: Cobalt-catalyzed atroposelective C−H activation/annulation to access N−N axially chiral frameworks
Reaction conditions: 1a (0.2 mmol), 2 (0.24 mmol), Co(OAc)2·4H2O (0.02 mmol), L6 (0.04 mmol), AdCO2H (0.2 mmol) in 1,4-dioxane (2 mL) at 80 °C under O2 for 6 h, isolated yields. de, diastereomeric excess.
