反应详情

温度

120 °C

In a microwave vial 5-chloropyrazine-2-carboxylic acid (100.0 mg, 0.631 mmol), dimethylformamide (5 mL), oxetan-2-ylmethanol (83.4 mg, 0.946 mmol) and potassium tert-butoxide (176.9 mg, 1.58 mmol) are added. A small exotherm is observed. After 1 minute at room temperature the vial is sealed and the mixture heated at 120° C. for 30 minutes in the microwave. The reaction mixture is then quenched with aqueous NH4Cl and the solvent evaporated under reduced pressure. The resultant residue is triturated in 2-propanol. The filtrate is concentrated under reduced pressure to give the title compound as a cream solid (0.294 g, 99%) and is used without further purification. ES/MS (m/e): 211.0 (M+1), 208.8 (M−H).

1. customAfter 1 minute at room temperature the vial is sealed
2. customThe reaction mixture is then quenched with aqueous NH4Cl
3. customthe solvent evaporated under reduced pressure
4. customThe resultant residue is triturated in 2-propanol
5. concentrationThe filtrate is concentrated under reduced pressure