Barium Sulfate → HCID 53945408, compound

Participants

Reaction Steps

A solution of 4.3 g (18.5 mmol) of 2-cyanoethyl-6-nitro-3,4-dihydro-2H-1-benzopyran in 80 ml of tetrahydrofuran is hydrogenated in the presence of 1 g of palladium on 5% barium sulfate. The mixture is stirred for 2 days, then it is filtered and the filtrate is concentrated under reduced pressure. By chromatography of the residue on a silica column using cyclohexane containing 30% ethyl acetate, 2.5 g of product are obtained.

Provenance & Evidence