反应详情

To a well-stirred solution of 7-Hydroxy-6-methoxy-1-tetralone (80.0 mg, 0.42 mmol) in CH2Cl2, was added Et3N (47 mg, 0.46 mmol), followed by DMAP (5.1 mg, 0.042 mmol) and TBSCl (69 mg, 0.46 mmol) at 0° C. under dry nitogen. After 2 h (at rt), the mixture was partitioned between CH2Cl2 and water. The organic layer was dried over anhydrous sodium sulfate, and after filtration, the organic layer was concentrated in vacuo to provide a yellow oil. 7-[(tertButyldimethylsilyl)oxy]-6-methoxy-1-tetralone (122 mg, 0.40 mmol, 95%) was obtained following purification by column chromatography. 1H-NMR (CDCl3, 300 MHz) 0.15 (s, 6H), 0.99 (s, 9H),2.11 (m, 2H), 2.58 (t, J=6.1 Hz, 2H), 2.88 (t, J=6.0 Hz, 2H), 3.86 (s, 3H), 6.63 (s, 1H), 7.56 (s, 1H).

1. customunder dry nitogen
2. customthe mixture was partitioned between CH2Cl2 and water
3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
4. filtrationafter filtration
5. concentrationthe organic layer was concentrated in vacuo
6. customto provide a yellow oil