HCID 54187371, compound → HCID 54108263, compound

Participants

Reaction Steps

A solution of ethyl (2,5,7,8-tetramethyl-2H-chromen-2-yl)acetate (20.00 g) in methanol (MeOH) (300 ml) was hydrogenated in the presence of 10% palladium on carbon (50% wet, 4.0 g) in one atmosphere of hydrogen at room temperature for 16 hours. The catalyst was filtered off and MeOH was removed under reduced pressure to give a residue. The residue was purified by chromatography over silica gel (AcOEt-hexane 3:97 as eluent) to give ethyl (2,5,7,8-tetramethylchroman-2-yl)acetate as an oil (18.72 g).

Provenance & Evidence