7-(Dimethoxymethyl)-1,2,3,4-tetrahydro-1,8-naphthyridine → 5,6,7,8-Tetrahydro-1,8-naphthyridine-2-carbaldehyde

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Reaction Steps

Dimethoxy-1,2,3,4-tetrahydropyridino[2,3-b]pyridin-7-ylmethane was dissolved in trifluoroacetic acid (14 mL) and stirred under nitrogen for 16 hrs. The mixture was quenched with saturated sodium bicarbonate, extracted with methylene chloride, dried over sodium sulfate, filtered, in vacuo and purified by flash chromatography (5% MeOH/CH2Cl2 ). EI-MS m/z 163 (M+H)+.

Provenance & Evidence