3-Ethoxy-2-methyl-6-nitropyridine → 5-Ethoxy-6-methylpyridin-2-amine

Beteiligte Stoffe

Reaktionsschritte

18.2 g of the nitro compound obtained above was suspended in 300 ml of ethanol, which was reduced over 2 g of 5% palladium black under atmospheric pressure. After reaction, the catalyst was filtered off and the solvent was evaporated in vacuo. The residue was crystallized from benzene to obtain 13.8 g of 3-ethoxy-2-methyl-6-aminopyridine (Compound IV where R2 =C2H5), m.p. 98°-99° C.

Herkunft & Nachweise