Chromanone → Chroman

Participants

Reaction Conditions

Reaction Steps

A suspension of chromanone (1 g, 6.75 mmol) and zinc powder (3.07 g, 47 mmol) in acetic acid (15 mL) was warmed at 100° C. for 15 hours. Residue of zinc was then removed by filtration on Celite®. The filtrate was concentrated under vacuum by co-evaporation with toluene to give the desired product (9a) without further purification (810 mg, 6.03 mmol, 89%).

Provenance & Evidence