反应详情

温度

85 °C

To 13-B in toluene (3 mL) was added thionyl chloride (2 mL) and, fitted with a reflux condenser, the solution was heated to 85° C. under a nitrogen atmosphere. After 1 hour the solvent was stripped off in vacuo. The residue was dissolved in CH3CN (4 ml) and product was purified by Masslynx reverse phase chromatography eluting with a 10-90% CH3CN (0.1% TFA)/water (0.1% TFA) gradient. Solvent was removed in vacuo and the product free based from methylene chloride and saturated aqueous sodium bicarbonate. The organic layer was washed with brine and dried over MgSO4. The solvent was removed and the product lyopholyzed from CH3CN and water to afford 13-C as a white solid. MS (ESI+)=514.22 (M+1); 1H NMR (500 MHz, CDCl3): δ 7.85-7.83 (m, 1 H), 7.72-7.68 (m, 2 H), 7.52 (t, 1 H), 3.48 (s, 3 H), 3.46 (m, 1 H), 2.86-2.74 (m, 1 H), 2.51-2.39 (m, 1 H), 2.28 (m, 6 H), 2.14 (m, 6 H), 1.50 (d, 3 H) ppm.

1. customfitted with a reflux condenser
2. customproduct was purified by Masslynx reverse phase chromatography
3. washeluting with a 10-90% CH3CN (0.1% TFA)/water (0.1% TFA) gradient
4. customSolvent was removed in vacuo
5. washThe organic layer was washed with brine
6. dry with materialdried over MgSO4
7. customThe solvent was removed