反应详情

温度

75 °C

In a flame dried round-bottomed flask equipped with a magnetic stir bar and under inert atmosphere (N2), a mixture of 2-[4-(2-methyl-[1,3]dioxolan-2-yl)-thiazol-2-ylmethyl]-4-nitro-2H-[1,2,3]triazole (145 mg, 0.49 mmol), iron powder (83 mg, 1.46 mmol) and NH4Cl (132 mg, 2.44 mmol) in a mixture of EtOH (2.0 mL) and water (1.0 mL) was stirred at 75° C. for 1 h. The reaction mixture was filtered while hot and the filter cake rinsed with EtOH. The filtrate was concentrated under reduced pressure and the residue partitioned between CH2Cl2 (10 mL) and aq. 1M NaOH (10 mL). The aq. layer was extracted with CH2Cl2 (2×10 mL). The combined org. extracts were dried over MgSO4, filtered, and the solvent removed under reduced pressure to give the title compound as a yellow oil (120 mg, 92%). LC-MS-conditions 02: tR=0.68 min, [M+H]+=268.05.

1. filtrationThe reaction mixture was filtered while hot and the filter cake
2. washrinsed with EtOH
3. concentrationThe filtrate was concentrated under reduced pressure
4. customthe residue partitioned between CH2Cl2 (10 mL) and aq. 1M NaOH (10 mL)
5. extractionThe aq. layer was extracted with CH2Cl2 (2×10 mL)
6. dry with materialextracts were dried over MgSO4
7. filtrationfiltered
8. customthe solvent removed under reduced pressure