title: 4-Methyl-3-(2-phenoxy-acet-yl)-5-phenyl-1,3,4-oxadiazinan-2-one.
abstract: The 1,3,4-oxadiazinane ring in the title compound, C(18)H(18)N(2)O(4), is in a twisted boat conformation. The two carbonyl groups are orientated towards the same side of the mol-ecule. The dihedral angle between the planes of the benzene rings is 76.6 (3)°. Mol-ecules are sustained in the three-dimensional structure by a combination of C-H⋯O, C-H⋯π and π-π [shortest centroid-centroid distance = 3.672 (6) Å] inter-actions.
authors.forename: Julio
authors.initials: J
authors.lastname: Zukerman-Schpector
authors.forename: Lucas
authors.initials: L
authors.lastname: Sousa Madureira
authors.forename: Alessandro
authors.initials: A
authors.lastname: Rodrigues
authors.forename: Elisângela
authors.initials: E
authors.lastname: Vinhato
authors.forename: Paulo R
authors.initials: PR
authors.lastname: Olivato