title: 2,2,6-Trimethyl-5-[2-(4-methyl-phen-yl)ethyn-yl]-4H-1,3-dioxin-4-one.
abstract: The 1,3-dioxin-4-one ring in the title compound, C(16)H(16)O(3), is in a half-boat conformation with the quaternary O-C(CH(3))(2)-O atom lying 0.546 (1) Å out of the plane defined by the remaining five atoms. The crystal structure is consolidated by C-H⋯O contacts that lead to supra-molecular layers.
authors.forename: Ignez
authors.initials: I
authors.lastname: Caracelli
authors.forename: Julio
authors.initials: J
authors.lastname: Zukerman-Schpector
authors.forename: Adriano S
authors.initials: AS
authors.lastname: Vieira
authors.forename: Hélio A
authors.initials: HA
authors.lastname: Stefani
authors.forename: Edward R T
authors.initials: ER
authors.lastname: Tiekink