反应详情

温度

90 °C

To a solution of ethyl nicotinate (30.24 g, 0.20 mol) in toluene (anhydrous, 200 mL) was added NaH (18.64 g, 0.47 mol, 60% in mineral oil). The resulting suspension was heated at 90° C. and acetonitrile (anhydrous, 24.74 ml, 0.47 mol) was added into this suspension via syringe under nitrogen and the reaction was heated at 90° C. overnight. The reaction mixture was cooled to ambient temperature and the resulting solid material was collected by filtration. The crude product was dried in vacuo and used directly in the next step. For analytical purposes, the solid was dissolved in water. The pH was adjusted to 5 by aqueous HCl and the solution extracted with DCM. The organic layer was dried over Na2SO4 and the solvent was removed in vacuo to afford a sample of the product for characterization. 1H NMR(CDCl3): δ9.2(s, 1H), 8.8(d, 1H), 8.2(d, 1H), 7.5(dd, 1H), 4.1 (s, 2H)

1. temperaturethe reaction was heated at 90° C. overnight
2. temperatureThe reaction mixture was cooled to ambient temperature
3. filtrationthe resulting solid material was collected by filtration
4. dry with materialThe crude product was dried in vacuo
5. dissolutionFor analytical purposes, the solid was dissolved in water
6. extractionthe solution extracted with DCM
7. dry with materialThe organic layer was dried over Na2SO4
8. customthe solvent was removed in vacuo
9. customto afford a sample of the product for characterization