Acetic Anhydride → HCID 12883705, compound

Participants

Reaction Steps

A solution of Compound 1A, prepared above, (7.4 g, 0.022 mole) in 150 ml of acetic anhydride was hydrogenated for 20 hours at 50 psi, using about 10 g of Raney nickel as a catalyst. The catalyst was then removed by filtration, and the solvent was evaporated in vacuo to leave a thick syrup. This syrup was dissolved in 200 ml of ethyl acetate which was then washed five times with 6% aqueous potassium carbonate solution and dried over MgSO4. The solvent was then evaporated in vacuo, and the syrup which remained was crystallized from ethyl acetate:petroleum ether. One recrystallization from the same solvent pair yielded 4.6 g (56% theory) of product, mp. 88°-90° C.

Provenance & Evidence