2-Aminopyridine → HCID 18407406, compound

Participants

Reaction Steps

1 g of 4-methyl-6-(4-tolyl)-2-pyrone, 0.6 g of hydroxylamine hydrochloride and 4 g of 2-aminopyridine were heated for 1 hour to 80° C. After the usual working up, 0.173 g (16.1 %) of 1-hydroxy-4-methyl-6-(4-tolyl)-2-pyridone melting at 125° C (calc.: 6.5 % N, found: 6,6 % N) were isolated. When using pyridine instead of aminopyridine under otherwise equal reaction conditions, the yield was 0.012 g (1.1 %) only.

Provenance & Evidence