Water → HCID 67041082, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of Example 254a (2.0 g, 6.1 mmol) in DMSO (50 mL) was added KOH (1.4 g, 24.3 mmol) and N-Boc-4-aminophenol (1.3 g, 6.1 mmol). The mixture was heated at 80° C. for 4 h. The reaction was cooled and poured into water. The aqueous phase was extracted with ethyl acetate (2×). The combined organic phases were washed with water, brine, and dried over sodium sulfate, filtered and concentrated under vacuum giving the title compound. The residue was purified by silica gel chromatography eluting with hexanes/ethyl acetate/methanol (80:10:10) to give the desired product (1.6 g, 51%).

Provenance & Evidence