2H-Pyran,2-(8-dodecyn-1-yloxy)tetrahydro-

2-(8-Dodecyn-1-yloxy)tetrahydro-2H-pyran is an intermediate in the synthesis of (8E)-Dodecen-1-ol (D525705) which is used in the study of the photochemical transformations of biologically active mono- and diene derivatives of pheromones.