Lithium borohydride → HCID 123265154, compound

Participants

Reaction Steps

To a solution of Compound 2 (450 mg, 2.3 mmol) in THF (10 mL) was added LiBH4 in THF (2M soln. 1.4 mL, 2.8 mmol) at ambient temperature. The mixture was stirred for 1 h, and the reaction was quenched with 5% H2SO4 in water (10 mL). The solution was diluted with 25 mL of EtOAc, the layers separated, and the product was extracted from the aqueous layer with EtOAc (2×25 mL). The combined organic layers were washed with brine, and dried (MgSO4), and the solvents were concentrated under vacuum. The residue was purified by flash chromatrography on silica gel using 25% EtOAc in hexane as the eluent. The title compound, Intermediate B, was isolated as a white solid after removal of the solvent under vacuum.

Provenance & Evidence