1,4-Dioxane → 8-Isopropoxy-[1,5]naphthyridine-2-carbaldehyde

Participants

Reaction Steps

To a solution of 8-isopropoxy-2-methyl-[1,5]naphthyridine (1.13 g, 5.60 mmol) in 1,4-dioxane (40 mL) was added SeO2 (0.80 g, 7.20 mmol) and the reaction mixture was refluxed for 2 hrs, when the TLC showed no starting material left, then cooled to room temperature and filtered through celite. The solid was washed with hot AcOEt and the filtrate was then concentrated to give 8-isopropoxy-[1,5]naphthyridine-2-carbaldehyde as a light yellow solid (1.20 g, 100%). HR-MS-EI (+) m/e calcd for C12H12N2O2 (M+) 216.0899. found 216.0900

Provenance & Evidence