Pyridine → N-[6-(5-Nitropyridin-2-yloxy)-2-phenylchroman-4-yl]-acetamide

Participants

Reaction Conditions

Reaction Steps

Acetic anhydride (60 μl) was added into a cooled solution of 6-(5-nitropyridin-2-yloxy)-2-phenylchroman-4-ylamine hydrochloride (100 mg) and pyridine (41 μl) in dry DMF. Resulting mixture was stirred for a further 20 hours at 0° C. Reaction was quenched with ice water and neutralised. Resulting mixture was extracted with dichloromethane, dried with Na2SO4 and evaporated. Mixture of diastereomers of N-[6-(5-nitropyridin-2-yloxy)-2-phenylchroman-4-yl]-acetamide was recrystallised from dichloromethane. (M)+=405 (24%), 301 (14%), 259 (100%), 242 (55%), 224 (96%).

Provenance & Evidence