9. 4 Synthesis of .327 Aldehydes and Ketones Oxidize primary alcohols using pyridinium chlorochromate Oxidize a 2 alcohol many reagents possible: choose for the specific situation( scale, cost, and acid/ base sensitivity)9.4 Synthesis of Aldehydes and Ketones • Oxidize primary alcohols using pyridinium chlorochromate • Oxidize a 2° alcohol . Many reagents possible: choose for the specific situation (scale, cost, and acid/base sensitivity) p. 327