tert-Butyl nitrite is an organic compound with the formula (CH<sub>3</sub>)<sub>3</sub>CONO. A colorless liquid, it is the tert-butyl ester of nitrous acid and is typically employed as a solution with tert-butyl alcohol.
The compound is used as a reagent in organic synthesis. It reacts with secondary amides to give N-nitroso amides: