Hydrogen Peroxide → HCID 68899835, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 20-4 (0.50 g, 1.9 mmol) in anhydrous THF (80 mL) at 0° C. was treated with BH3:THF (1.93 mL, 1.9 mmol) then stirred for 1 hour. at 25° C. Water (0.35 mL, 19.2 mmol) was added, followed by 3 N NaOH (0.23 mL, 5.8 mmol). The resulting solution was cooled to 0° C. prior to the addition of 30% H2O2 (0.22 mL, 1.9 mmol). The reaction was partitioned between sat. aq. NaHCO3 (100 mL) and EtOAc (2×100 mL). The combined organic layers were dried over Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by flash column (SiO2, O-100% EtOAc/Hexanes gradient) to yield tert-butyl 4-hydroxy-2-methyl-2-phenylpyrrolidine-1-carboxylate, 20-5: LRMS m/z (M+H) 278.2 found, 278.1 required.

Provenance & Evidence