Diethyl Ether → tert-Butyl 4-formylpiperidine-1-carboxylate

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Reaction Steps

Periodinane (26.9 g, 63.5 mmol) was added to 4-Hydroxymethyl-piperidine-1-carboxylic acid tert-butyl ester (10.5 g, 48.8 mmol) in CH2Cl2 (200 mL) and stirred for 90 min. Diethyl ether (560 mL) was added and precipitates were removed by extraction with 10% Na2S2O3/saturated NaHCO3 (1:1, 300 mL). The organic layer was washed with 0.5 M NaOH solution and brine. The organic phase was dried and concentrated under reduced pressure. Purification using flash chromatography (hexane/EtOAc, 8:2) gave 4-Formyl-piperidine-1-carboxylic acid tert-butyl ester (8.5 g, 81%).

Provenance & Evidence