反应详情

Pd/C (10%, 1 g) was added to a solution of (S)-benzyl tetrahydro-2H-pyran-3-carboxylate (1.1 g, 5 mmol) in MeOH (10 mL). The suspension was stirred under hydrogen atmosphere at ambient temperature for 2 h. The catalyst was filtered off and washed with MeOH (5 mL). The filtrate and washings were combined and concentrated to dryness to afford (S)-tetrahydro-2H-pyran-3-carboxylic acid (0.6 g, 92% yield). (R)-Tetrahydro-2H-pyran-3-carboxylic acid was made in a similar manner.

1. filtrationThe catalyst was filtered off
2. washwashed with MeOH (5 mL)
3. concentrationconcentrated to dryness