Boron tribromide → HCID 91416132, compound

Participants

Reaction Steps

To a solution of the product of Step 2 (170 mg, 0.56 mmol) in CH2Cl2 (5 mL) at 0° C. was added slowly BBr3 1.0 M in dichloromethane (2.8 mL, 2.8 mmol) dropwise. The reaction mixture was warmed to r.t. for 30 minutes then cooled to −78° C., quenched with MeOH (5 mL), extracted with CH2Cl2, and washed with a saturated aqueous solution of NaHCO3. The combined organic layers were dried over Na2SO4 and concentrated. The residue was purified by silica gel chromatography to give the title compound (130 mg).

Provenance & Evidence