HCID 19020398, compound → HCID 14770120, compound

Participants

Reaction Steps

A solution of 1 g of 5,6-dihydro-3-hydroxy-2-phenyl-thiazolo[3,2-a]thieno[3,2-c]pyridinium hydroxide (internal salt) and 0.23 g of 3-butyl-2-one in 10 ml of toluene was stirred at room temperature for 48 hours. The solution was evaporated in vacuo and the residue was chromatographed on silica gel with toluene/ethyl acetate (9:1). There was obtained pure 10-acetyl-4,5-dihydro-8-phenyl-7H-thieno-[3,2-a]quinolizin-7 one of m.p. 181°-182° (from ethyl acetate).

Provenance & Evidence