反应详情

I-208 was synthesized from 5-bromo-2-methoxyphenylboronic acid (2.00 g, 8.66 mmol) and 3-chloroiodobenzene (2.48 g, 10.4 mmol) using the same conditions as for I-207. The reaction time was extended to 16 h. The methanol was removed under vacuum, and the residue dissolved in ethyl acetate (100 mL), washed with water (100 mL), and the aqueous wash extracted with ethyl acetate (100 mL). The combined organic extracts were washed with saturated aqueous sodium bicarbonate (2×200 mL), water (2×200 mL) and brine (150 mL), dried over sodium sulfate, filtered and the solvent removed under vacuum to give I-208 (2.56 g, 99% yield). 1H NMR (400 MHz, CDCl3) 7.49-7.48 (m, 1H), 7.44-7.40 (m, 2H), 7.36-7.31 (m, 3H), 6.85 (d, J=8.4 Hz, 1H), 3.80 (s, 3H) ppm.

1. customThe methanol was removed under vacuum
2. dissolutionthe residue dissolved in ethyl acetate (100 mL)
3. washwashed with water (100 mL)
4. washthe aqueous wash
5. extractionextracted with ethyl acetate (100 mL)
6. washThe combined organic extracts were washed with saturated aqueous sodium bicarbonate (2×200 mL), water (2×200 mL) and brine (150 mL)
7. dry with materialdried over sodium sulfate
8. filtrationfiltered
9. customthe solvent removed under vacuum
10. customto give I-208 (2.56 g, 99% yield)