反应详情

温度

60 °C

To a solution of K tert butylate (574 mg, 5.11 mL) in methanol (10 mL), hydroxylamine hydrochloride (304 mg, 4.38 mmol) is added. To the stirred suspension, a solution of 2-(ethyl-methyl-amino)-6-methyl-isonicotinonitrile (256 mg, 1.46 mmol) in methanol (10 mL) is added and the resulting mixture is stirred at 60° C. for 15 h. The mixture is filtered, and the filtrate is concentrated. The residue is treated with 1 N aq. HCl, washed with DCM and then basified by adding 1 N aq. NaOH. The mixture is extracted three times with EA. The combined EA extracts are dried over MgSO4, filtered, concentrated and dried to give the title compound as a pale yellow oil; LC-MS: tR=0.45 min, [M+1]+=209.10; 1H NMR (D6-DMSO): δ 1.06 (t, J=6.5 Hz, 3H), 2.29 (s, 3H), 2.98 (s, 3H), 3.56 (q, J=6.3 Hz, 2H), 5.82 (s, 2H), 6.64 (s, 1H), 6.69 (s, 1H), 9.74 (s, 1H).

1. filtrationThe mixture is filtered
2. concentrationthe filtrate is concentrated
3. additionThe residue is treated with 1 N aq. HCl
4. washwashed with DCM
5. additionby adding 1 N aq. NaOH
6. extractionThe mixture is extracted three times with EA
7. dry with materialThe combined EA extracts are dried over MgSO4
8. filtrationfiltered
9. concentrationconcentrated
10. customdried