Phthalimide → HCID 131729310, compound

Participants

Reaction Steps

To cis-phenylmethyl (3RS,5RS)-3-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-5-(hydroxymethyl)-1-piperidinecarboxylate (550 mg; 1.4 mmol) in THF (25 ml) was added phthalimide (250 mg; 1.7 mmol), triphenylphosphine (450 mg; 1.7 mmol), and diethyl azodicarboxylate (300 mg; 1.7 mmol). The reaction was allowed to stir at room temperature under N2 for 16 hours. The reaction was partitioned between EtOAc (150 ml) and water (50 ml), the layers were separated, the organic layer was washed with brine and dried with Na2SO4. The solvents were removed and the crude residue was purified by chromatography on silica gel using a 10%-100% EtOAc/hexanes gradient to provide the desired compound (690 mg; 93%) as a yellow oil.

Provenance & Evidence