反应详情

A mixture of 4-benzyloxycarbonyl-1-(4-fluorobenzyl)-3,4-dihydro-pyrazin-2(1H)-one (0.5 g, 1.45 mmol) and Pearlman's catalyst (26 mg; 20% palladium hydroxide on carbon) in methanol (25 mL) was stirred under an atmosphere of hydrogen (1 atm) at room temperature overnight. The product mixture was filtered through a pad of Celite, and then concentrated under vacuum to provide 1-(4-fluorobenzyl)piperazin-2-one.

1. filtrationThe product mixture was filtered through a pad of Celite
2. concentrationconcentrated under vacuum