1-Decyne is the organic compound with the formula C<sub>8</sub>H<sub>17</sub>Câ¡CH. It is a terminal alkyne. A colorless liquid, 1-decyne is used as a model substrate when evaluating methodology in organic synthesis. It participates in a number of classical reactions including Suzuki-Miyaura couplings, Sonogashira couplings, Huisgen cycloadditions, and borylations.
Under the catalysis of platinum, it reacts with hydrogen to produce decane.