反应详情

To the potassium salt of 3-benzyloxybenzoic acid (2.39 g, 8.91 mmol) was added the bromochloromethane (8.7 ml, 15 eq.) and DMF (10.7 mL). The mixture was then stirred at room temperature for 12-18 hours. The mixture was then filtered and the filtrate concentrated. Purification of the crude product via flash chromatography (EtOAc: Hexanes 1:10) yielded 1.2 g of the title compound as a light yellow oil. 1H NMR (300 MHz, CDC13)δ=5.12 (s, 2H), 5.96 (s, 2H), 7.22-7.25 (m, 1H), 7.26-7.47 (m, 6H), 7.68-7.72 (m, 2H), MS(ESI) 276.

1. filtrationThe mixture was then filtered
2. concentrationthe filtrate concentrated
3. customPurification of the crude product via flash chromatography (EtOAc: Hexanes 1:10)