反应详情

A mixture of 1-(4-methyl-2-methylamino-thiazol-5-yl)-ethanone (0.40 g, 2.4 mmol) in THF (2 mL) was treated with NaH (0.113 g, 4.7 mmol). After heating at 40° C. for 0.5 h MeI (0.35 g, 2.4 mmol) was added. Heating was continued for a further 2 h. After cooling, the solution was diluted with EtOAc, washed with brine, and dried over MgSO4. The solvent was evaporated to afford 1-(2-dimethylamino-4-methyl-thiazol-5-yl)-ethanone as a yellow solid. 1H-NMR (CDCl3) δ: 2.36 (s, 3H, CH3), 2.51 (s, 3H, CH3), 3.10 (s, 6H, CH3).

1. additionwas added
2. temperatureHeating
3. temperatureAfter cooling
4. washwashed with brine
5. dry with materialdried over MgSO4
6. customThe solvent was evaporated