Synthesis of oxirnes. IV. 2-pyridinealdoxime methiodides from 2-picoline methiodides

The Ortoleva-King-Krohnke sequence was used to prepare substituted 2-pyridinealdoxime methiodides. The methodology was extended to prepare three analogs in which two molecules of 5-hydroxy-2-pyridinealdoxime methiodide were coupled through the 5-position with dihalides.