反应详情

A solution of 1-tetrahydro-4H-pyran-4-ylideneacetone (4.0 g, 28.5 mmol) in ethyl acetate was added to a Parr vessel. The vessel was purged with nitrogen, and 10% palladium on carbon (400 mg) was added. The vessel was shaken under hydrogen pressure (50 psi, 3.4×105 Pa) for approximately ten minutes, and the reaction mixture was filtered through a layer of CELITE filter agent. The filter cake was washed with ethyl acetate. The filtrate was concentrated under reduced pressure, and the residue was dried under a stream of nitrogen to provide 3.80 g of 1-tetrahydro-2H-pyran-4-ylacetone as a colorless oil.

1. customThe vessel was purged with nitrogen, and 10% palladium on carbon (400 mg)
2. additionwas added
3. filtrationthe reaction mixture was filtered through a layer of CELITE filter agent
4. washThe filter cake was washed with ethyl acetate
5. concentrationThe filtrate was concentrated under reduced pressure
6. customthe residue was dried under a stream of nitrogen