반응 #43999
ord-d6f642dc4afa440cadc7dffc7c3543a3
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후처리
- 1추출extracted with ethyl acetate (2×5 ml)
- 2추출extracted with ethyl acetate (3×5 ml)
- 3건조The combined organic extracts were dried over magnesium sulphate
- 4기타the solvent removed in vacuo
실험 절차
A solution of ethyl[4-(4,9-diethoxy-1,3-dihydro-2H-benzo[f]isoindol-2-yl)phenyl]acetate (10 mg, 0.024 mmol) in tetrahydrofuran (4 ml) and a solution of lithium hydroxide (6 mg, 0.24 mmol) in water (1 ml) were stirred vigorously for 14 h. The reaction mixture was diluted with water (10 ml) and extracted with ethyl acetate (2×5 ml) and the organic extracts discarded. The aqueous phase was acidified with 2N hydrochloric acid to pH=5 and extracted with ethyl acetate (3×5 ml). The combined organic extracts were dried over magnesium sulphate and the solvent removed in vacuo to give the product as a red solid (4 mg, 43%). δH CDCl3 8.13 (2H, dd, J=6.5, 3.2), 7.49, (2H, dd, J=6.5, 3.2), 7.24 (2H, d, 8.3), 6.75 (2H, d, J=8.3), 4.81 (4H, s), 4.19 (4H, q, J=7.0), 3.69 (2H, s), 1.53 (6H, t, J=7.0); LC retention time 3.92 min, ms 392, [MH+].