Water → HCID 68578388, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of tert-butyl 9-bromo-6-fluoro-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (400 mg, 1.16 mmol), cyclopropylboronic acid (298 mg, 3.47 mmol), saturated aqueous sodium carbonate solution (6 ml), and tetrakis(triphenylphosphine)palladium(0) (36.1 mg, 0.0313 mmol) in dimethoxyethane (10 ml) was stirred under a nitrogen atmosphere at 90° C. for 12 hr. The reaction mixture was poured into water, and the mixture was extracted with ethyl acetate. The extract was washed with water, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate=3:1) to give the desired product (270 mg, 75.7%) as an oil.

Provenance & Evidence