Tetrahydrofuran → HCID 18675743, compound

Participants

Reaction Steps

To a solution of 5,11-dihydro-7-methoxy [1]benzoxepino[2,3-b]pyridin-5-one (5.0 g) in THF (50 ml) was added 1.1 M cyclopropylmagnesium bromide THF solution (25 ml) at 0° C. The reaction mixture was warmed to room temperature, and stirred for 30 minutes. Aqueous ammonium chloride and ethyl acetate were added to the reaction mixture, the organic layer was separated and washed with saturated aqueous sodium chloride, and dried with magnesium sulfate. The solvent was distilled off under reduced pressure. The residue was filtered and washed with ethyl acetate-hexane (1:2) to give 5-cyclopropyl-5,11-dihydro-7-methoxy[1]benzoxepino[2,3-b]pyridin-5-ol (5.0 g).

Provenance & Evidence