反应详情

A mixture of [1-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-1H-pyrazol-4-yl]methanol (2.82 g), activated manganese dioxide (6.00 g), and tetrahydrofuran (50 ml) was stirred at room temperature for 2 hours. After the manganese dioxide was removed by filtration, the filtrate was concentrated. The residue was subjected to silica gel column chromatography, and 1-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyl]-1H-pyrazole-4-carbaldehyde (2.63 g, yield: 94%) was obtained as a colorless oily substance from the fraction eluted with ethyl acetate-hexane (1:1, volume ratio).

1. customAfter the manganese dioxide was removed by filtration
2. concentrationthe filtrate was concentrated