Deoxygenation

Deoxygenation is a chemical reaction involving the removal of oxygen atoms from a molecule. The term also refers to the removal of molecular oxygen (O2) from gases and solvents, a step in air-free technique and gas purifiers. As applied to organic compounds, deoxygenation is a component of fuels production as well a type of reaction employed in organic synthesis, e.g. of pharmaceuticals.

Compounds with an oxygen atom removed can be described as "desoxy-" or "deoxy-" relative to the original compound, for instance deoxyribose or desoxymescaline.