反应详情

To a solution of 40 ml of methanol that had reacted with 0.5 g of Na (0.022 mol) was added 0.5 g of (7) (0.0021 mol). The reaction was heated to reflux for 1 h followed by evaporation of the solvent. The residue was treated with ice-water and extracted 3× with 25 ml of CH2Cl2. The extracts were dried and evaporated to give a yellow solid that was recrystallized from ethyl acetate to give (8), 0.12 g, mp 130°-131° C. NMR ppm (CDCl3) 1.15 (1H, m), 1.45 (2H, m), 2.25 (1H, m), 2.38 (1H, m), 2.7-3.15 (5H, m), 3.9 (1H, bs), 4.05 (3H, s), 4.3 (1H, d), 8.05 (1H, d), 8.15 (1H, d). Anal. C12H17N3O2 requires C: 61.26; H: 7.28; N: 17.86%. Found C: 61.02; H: 7.45; N: 17.95%.

1. temperatureThe reaction was heated
2. temperatureto reflux for 1 h
3. customfollowed by evaporation of the solvent
4. additionThe residue was treated with ice-water
5. extractionextracted 3× with 25 ml of CH2Cl2
6. customThe extracts were dried
7. customevaporated
8. customto give a yellow solid
9. customthat was recrystallized from ethyl acetate