反应详情

温度

0 °C

A solution of N-tert-butyl-4-cyano-3-methylbenzenesulfonamide (0.4861 g) in THF (19 ml) at 0° C. was treated with MeMgBr (1.4 M in THF, 4.13 ml). The reaction mixture was heated at reflux overnight. After cooling, the reaction was quenched with MeOH and sodium borohydride (3 eq) was added. The mixture was stirred at 0° C. for 1 h, warmed to room temperature and stirred for 4 hours. The reaction mixture was then quenched with H2O, stirred overnight and concentrated to give a yellow solid. The solid was partitioned between EtOAc/H2O and the organic layer was separated, dried (MgSO4) and concentrated to give a yellow oil. The oil was purified by reverse phase HPLC (5-100% ACN/H2O+0.1% TFA) to give 0.3403 g 4-(1-aminoethyl)-N-tert-butyl-3-methylbenzenesulfonamide as white powder after lyophilization.

1. temperatureThe reaction mixture was heated
2. temperatureat reflux overnight
3. temperatureAfter cooling
4. additionwas added
5. temperaturewarmed to room temperature
6. stirringstirred for 4 hours
7. customThe reaction mixture was then quenched with H2O
8. stirringstirred overnight
9. concentrationconcentrated
10. customto give a yellow solid
11. customThe solid was partitioned between EtOAc/H2O
12. customthe organic layer was separated
13. dry with materialdried (MgSO4)
14. concentrationconcentrated
15. customto give a yellow oil
16. customThe oil was purified by reverse phase HPLC (5-100% ACN/H2O+0.1% TFA)