反应详情

To 1.31 g (9.22 mmol) of orcinol monohydrate in 20 mL anhydrous N,N-dimethylformamide under a nitrogen atmosphere was added 220 mg (9.17 mmol) of NaH (100%). After 5 min, 1.30 mL (10.0 mmol) of 2-chlorobenzyl bromide was added. The reaction mixture was stirred for 2 h and then quenched with 1N HCl. The reaction mixture was extracted into ethyl acetate (200 mL). The organic phase was washed with water (4×100 mL), dried (MgSO4), and concentrated in vacuo. Purification by flash chormatography (diethyl ether/hexane (50:50 to 100:0) gave 656 mg of the title compound as a glass. 1H-NMR (300 MHz, CDCl3) δ 7.54 (dd, 1H, J=3, 7 Hz), 7.39 (dd, 1H, J=3, 7 Hz), 7.2-7.3 (m, 2H), 6.41 (s, 1H), 6.29-6.30 (m, 2H), 5.29 (s, 2H), and 2.28 (s, 3H).

1. customquenched with 1N HCl
2. extractionThe reaction mixture was extracted into ethyl acetate (200 mL)
3. washThe organic phase was washed with water (4×100 mL)
4. dry with materialdried (MgSO4)
5. concentrationconcentrated in vacuo
6. customPurification by flash chormatography (diethyl ether/hexane (50:50 to 100:0)