Deoxygenation

The term also refers to the removal of molecular oxygen (O2) from gases and solvents, a step in air-free technique and gas purifiers.

[citation needed] Stoichiometric reactions that effect deoxygenation include the Wolff–Kishner reduction for aryl ketones.

[1] Oxygen groups can also be removed by the reductive coupling of ketones, as illustrated by the McMurry reaction.

Epoxides can be deoxygenated using the oxophilic reagent produced by combining tungsten hexachloride and n-butyllithium generates the alkene.

[5][6] A chemical reagent for the deoxygenation of many sulfur and nitrogen oxo compounds is the combination trifluoroacetic anhydride/sodium iodide.