反应详情

A mixture of 6-methoxy-2,3-dihydro-isoindol-1-one (167 mg, 1.0 mmol) and boron tribromide (1 M in CH2Cl2, 3.6 mL, 3.6 mmol) in CH2Cl2 (8 mL) at −78° C. was stirred for 18 h at RT. The mixture was then cooled to −78° C. and MeOH (20 mL) was added. After 2 h at −78° C. the mixture was evaporated and the residue purified by chromatography (SiO2, CH2Cl2:2N NH3-MeOH 9:1) to afford the title product (147 mg, 100%) as a white solid. MS m/e=148.0 (M−H+).

1. temperatureThe mixture was then cooled to −78° C.
2. customAfter 2 h at −78° C. the mixture was evaporated
3. customthe residue purified by chromatography (SiO2, CH2Cl2:2N NH3-MeOH 9:1)