反应详情

To a solution of 2-fluoro-5-nitro-6-picoline (5.0 g, 32 mmol) and 2-mercaptoethanol (4.5 ml, 64 mmol), KOH (2 g, 36 mmol) was added at 0° C. The mixture was stirred at the same temperature for 15 minutes. The crude mixture was extracted with AcOEt and brine. Organic phase was dried over MgSO4, filtered, and concentrated to provide the crude 2-(6-methyl-5-nitro-pyridin-2-ylsulfanyl)-ethanol as an oil (7.238 g). 1HNMR (DMSO-d4, 400 MHz) δ 2.75 (s, 3H), 3.30-3.33 (m, 2H), 3.63-3.67 (m, 2H), 4.65-4.68 (m, 1H), 7.40-7.43 (m, 1H), 8.24-8.26 (m, 1H). Exact mass calculated for C8H10N2O3S 214.04 found 215.1 (MH+).

1. extractionThe crude mixture was extracted with AcOEt and brine
2. dry with materialOrganic phase was dried over MgSO4
3. filtrationfiltered
4. concentrationconcentrated