反应详情

温度

0 °C

A RBF was charged with methylamine (0.9 mL, 40%, 28 mmol) in ethanol (2 mL). The mixture was chilled to 0° C. in an ice bath while stirred under an inert atmosphere. Then, m-toluenesulfonyl chloride (0.8 mL, 6 mmol) was added dropwise into the mixture. The resulting mixture was allowed to stir at 0° C. under an inert atmosphere for 30 minutes. The mixture was diluted with EtOAc and water and then the aqueous layer was extracted three times with EtOAc. The combined organic layers were washed with brine, dried over sodium sulfate, filtered, and concentrated in vacuo to give N,3-dimethylbenzenesulfonamide (1.0 g, 98% yield) as a colorless oil. MS (ESI pos. ion) m/z: 173 (MH+). Calculated exact mass for C7H10NO2S: 172.

1. stirringto stir at 0° C. under an inert atmosphere for 30 minutes
2. extractionthe aqueous layer was extracted three times with EtOAc
3. washThe combined organic layers were washed with brine
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo