N-[(1R,2R)-2-Hydroxycyclohexyl]-4-(phenylmethyl)-2-morpholinecarboxamide → N-[(1R)-2-Oxocyclohexyl]-4-(phenylmethyl)-2-morpholinecarboxamide

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Reaktionsschritte

A suspension of N-[(1R,2R)-2-hydroxycyclohexyl]-4-(phenylmethyl)-2-morpholinecarboxamide (5.0 g, 15.7 mmol) and pyridinium chlorochromate (PCC) (4.06 g, 18.84 mmol) in CH2Cl2 (79 mL) was stirred at room temperature for 18 hours. The reaction mixture was filtered through a pad of silica gel and washed with EtOAc to get crude product (4.0 g). Purification was carried out on column chromatography (EtOAc—PE, from 2:1 to 2:0) to afford the title compound (0.7 g). LC-MS (ES) m/z=317 [M+H]+.

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