7-Chloro-1,8-naphthyridin-2-amine → 7-methoxy-1,8-Naphthyridin-2-amine

関与物質

反応手順

A mixture of 2-chloro-7-amino-1,8-napthyridine (Newkome, G. R. et al, J. Org. Chem., 1981, 46, 833-39) (180 mg, 1 mmol) and a methanolic solution of sodium methoxide (458 μL, 25 wt. %) in methyl alcohol (2 mL) was heated at 50° C. for 19 hours. The reaction mixture was allowed to cool, filtered through Celite using dichloromethane, concentrated in vacuo and the residue purified on Silica gel (1:9:0.2 methyl alcohol/dichloromethane/ammonium hydroxide) to afford 2-methoxy-7-amino-1,8-naphthyridine as a pale yellow solid.

情報源と証拠