Borane → HCID 67043493, compound

Participants

Reaction Conditions

Reaction Steps

5-((S)-1-(4-bromophenyl)ethylamino)-5-oxo-3-phenylpentanoic acid (1.92 g, 4.92 mmol, 1.0 equiv) was dissolved in THF (30 mL) and the resulting solution cooled to 0° C. Borane (1.0 M in THF, 10.5 mL, 10.5 mmol, 2.1 equiv) was added via syringe. After 0.5 h LC-MS showed formation of the alcohol. The excess borane was quenched by the drop-wise addition of 1.0 M aq HCl and the mixture was transferred to a separatory funnel. The layers were separated and the organic layer washed with brine, dried over Na2SO4, filtered and evaporated. The resulting N—((S)-1-(4-bromophenyl)ethyl)-5-hydroxy-3-phenylpentanamide (˜1.9 g, >95% yield) was of sufficient purity to use in the next step.

Provenance & Evidence