4-(Bromomethyl)benzyl alcohol → 4-(Bromomethyl)benzaldehyde

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Reaction Steps

The 4-bromomethylbenzyl alcohol (57.91 g, 288.0 mmol) was then converted to the corresponding aldehyde by dissolving the intermediate in 350 ml of dichloromethane and then adding this solution to a flask containing pyridinium chlorochromate (93.0 g, 431 mmol) suspended in 750 ml of dichloromethane. The dark-brown reaction mixture was then stirred at room temperature under nitrogen atmosphere. After 70 minutes of stirring most of the starting material had been consumed as determined by thin layer chromatography.

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