反应详情

温度

90 °C

A mixture of ethyl 4-methyl-5-nitropyridine-2-carboxylate (39.5 g, 0.19 mol), dimethylformamide-dimethylacetal (DMF-DMA) (30.6 g, 0.26 mol, 1.35 eq) in DMF (470 mL) was heated to 90° C. for 30 min. The solvent was removed in vacuo. The residue (78 g) was used without further purification in the next step.

1. customThe solvent was removed in vacuo
2. customThe residue (78 g) was used without further purification in the next step