How is 5-Chloro-2-methoxy-4-pyridinol (CAS: 1196146-71-0) typically synthesized?

5-Chloro-2-methoxy-4-pyridinol can be synthesized through the reaction of 2-methoxy-4-pyridone with chlorine in the presence of an appropriate base. The reaction yields the desired product with good selectivity and high yield. Common solvents used include dimethylformamide (DMF) or acetonitrile, and the reaction is typically performed under mild heating conditions.