title: 4-Ethynyl-2,2,6,6-tetra-methyl-1,2,5,6-tetra-hydro-pyridine N-oxide.
abstract: The six-membered ring of the title compound, C(11)H(16)NO, has a distorted envelope conformation. The piperidine N atom deviates by 0.128 (1) Å from the plane through its three neighbouring atoms. In the crystal structure, mol-ecules are connected by inter-molecular C(ethyn-yl)-H⋯O contacts to form chains extending in the [10] direction.
authors.affiliation: Institut für Organische Chemie, Universität Frankfurt, Max-von-Laue-Strasse 7, D-60438 Frankfurt am Main, Germany.
authors.forename: Jan W
authors.initials: JW
authors.lastname: Bats
authors.forename: Olga
authors.initials: O
authors.lastname: Frolow
authors.forename: Joachim W
authors.initials: JW
authors.lastname: Engels