4-(hydroxymethyl)-N-methylpyridine-2-carboxamide hydrochloride hydrate → 4-formyl-N-methylpicolinamide

Beteiligte Stoffe

Reaktionsschritte

7.50 g (33.989 mmol) of 4-(hydroxymethyl)-N-methylpyridine-2-carboxamide hydrochloride hydrate (Example 40A) were initially charged in 90 ml of methanol, 23.64 g (271.915 mmol) of manganese dioxide were added and the mixture was stirred at RT overnight. The reaction mixture was filtered off with suction through silica gel, the silica gel/manganese dioxide mixture was stirred with tetrahydrofuran/methanol 1:1 overnight, the silica gel/manganese dioxide mixture was then filtered off and the filtrate was evaporated.

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