反应详情

A solution of 5-bromo-2-(4-methoxybenzyl)-3,3-dimethyl-2,3-dihydroisoindol-1-one (640 mg, 1.78 mmol) and ceric ammonium nitrate (2.91 g, 5.33 mmol) in acetonitrile (11 mL) and water (5 mL) is stirred at 0° C. for 45 min. The solution is diluted with ethyl acetate (100 mL) and washed with brine (40 mL). The organic solvents are dried over MgSO4 and evaporated under reduced pressure. The residue is purified by silica chromatography, eluting with 10% to 50% ethyl acetate in petroleum ether to afford the title compound (367 mg, 1.53 mmol).

1. washwashed with brine (40 mL)
2. dry with materialThe organic solvents are dried over MgSO4
3. customevaporated under reduced pressure
4. customThe residue is purified by silica chromatography
5. washeluting with 10% to 50% ethyl acetate in petroleum ether