Formic Acid → (9AS)-Hexahydropyrazino-[2,1-c][1,4]oxazin-4(3H)-one

Participants

Reaction Conditions

Reaction Steps

Benzyl (9aS)-4-oxohexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (0.19 g, 0.65 mmol was dissolved in ethanol (20 mL). The solution was transferred to a 25 mL vial, which contained 10% palladium on carbon (0.1 g), formic acid (0.1 g, 2.2 mmol) and ammonium formate (0.2 g, 3.17 mmol). The mixture was heated for 5 min at 120° C. using microwave single node heating. The catalyst was filtered off and the solution of crude (9aS)-hexahydropyrazino[2,1-c][1,4]oxazin-4(3H)-one was used in the next step without purification and quantification.

Provenance & Evidence