title: Methyl 3-(4-{6-methyl-4-[3-(trifluoro-meth-yl)phen-yl]pyridazin-3-yl-oxy}phen-yl)propanoate.
abstract: In the title compound, C(22)H(19)F(3)N(2)O(3), the benzene rings of the trifluoro-methyl-phenyl and benzoyl-phenyl groups form dihedral angles of 41.89 (10) and 67.44 (10)°, respectively, with the pyridazine ring. The methyl-propanoate group is nearly coplanar with the attached benzene ring [dihedral angle = 3.9 (2)°]. The trifluoro-methyl group is disordered over two positions; the site-occupancy factors are ca 0.64 and 0.36. In the crystal structure, inversion-related mol-ecules are linked through C-H⋯O hydrogen bonds and C-H⋯π inter-actions.
authors.affiliation: State Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
authors.forename: Yu-Hong
authors.initials: YH
authors.lastname: Xiao
authors.forename: You-Quan
authors.initials: YQ
authors.lastname: Zhu
authors.forename: Xiao-Mao
authors.initials: XM
authors.lastname: Zou
authors.forename: Fang-Zhong
authors.initials: FZ
authors.lastname: Hu
authors.forename: Hua-Zheng
authors.initials: HZ
authors.lastname: Yang