Toluene → HCID 20319779, compound

Participants

Reaction Steps

A toluene solution of 30.5 g (0.1 mol) of 2-[2-(3-carbomethoxypropyl)benzyl]-1,3,4-cyclopentanetrione, XIIa, was thoroughly dried by azeotropic distillation. Removal of the toluene gave a red oil that was taken up in 200 ml of 2-propanol. Five grams of Pd/C was added and the compound hydrogenated at 0.25 psi for 3 days. The catalyst was filtered and the solvent evaporated to give the crude product. This was chromatographed on silicic acid and eluted with 4:1 benzene:ethyl acetate. The major fraction amounted to 20 g of the hydroxy dione XIIIa as a clear, light tan oil.

Provenance & Evidence