Fig. 4: Reaction of N-propargyl ynamide 2a with different benzofurans 1.
From: Enantioselective dearomative single-atom skeletal editing of benzofurans
Reaction conditions: 1 (0.3 mmol), 2a (0.1 mmol), CuOAc (0.015 mmol), NaBArF4 (0.018 mmol), L10 (0.018 mmol), toluene (2 mL), 5 °C, 48 h-13 d, in vials; yields were those for the isolated products; ees were determined by HPLC analysis. des were determined by crude 1H NMR. a0.5 mmol of 1 was used.
