反应详情

A high pressure autoclave was charged with a mixture of methyl (4-hydroxyphenyl)acetate (50 g, 0.30 mol), palladium (5 g) (10%) on carbon (50% wet) and O-xylene (250 mL). The reaction mixture was stirred under 110 to 115 psi of hydrogen pressure for 7 to 8 h at 140° C. The reaction was monitored by HPLC. The reaction mixture was then cooled to room temperature, and the catalyst was filtered off. Filtrate was concentrated under reduced pressure to get 4-(methoxycarbonylmethyl)cyclohexanone as light yellow to colorless oily liquid (48.7 g, 97.4%).

1. filtrationthe catalyst was filtered off
2. concentrationFiltrate was concentrated under reduced pressure