Methyl morpholine oxide → HCID 86669884, compound

Participants

Reaction Steps

To 3-(4-propylphenyl)-7-vinyl-4,5-dihydronaphtho[2,1-d]isoxazole (Preparation 20D, 0.205 g, 0.650 mmol) in THF (2 mL) were added sequentially N-methylmorpholine-N-oxide (0.3 mL, 0.650 mmol) and osmium tetroxide (0.102 mL, 0.013 mmol) at room temperature. The contents were stirred at room temperature for 85 h. Next, sodium periodate (0.209 g, 0.975 mmol) dissolved in 1.5 mL of water was added at room temperature and the reaction mixture was stirred at room temperature for 1 h. The reaction mixture was partitioned between ethyl acetate (20 mL) and brine (20 mL). The ethyl acetate layer was dried over sodium sulfate and concentrated to yield 3-(4-propylphenyl)-4,5-dihydronaphtho[2,1-d]isoxazole-7-carbaldehyde (0.19 g, 0.599 mmol, 92% yield) as a tan solid. LCMS M+1=318.2.

Provenance & Evidence