Recent work in this department needed a sample of 5-hydroxy-2-iodopyridine (1a). The literature reveals modern work apparently describing the preparation of 1a, mp 188-189 C, by iodination of 3-hydroxypyridine using sodium iodide and sodium hypochlorite in a methanol/water system. 1 Also, material prepared in this way is reported as the starting material for the preparations of L-β-(5-hydroxy-2-pyridyl) alanine2 and a derivative3 of this ...