title: Methyl 4-{[6-(4-bromo-phen-yl)-3-oxo-2,3,4,5-tetra-hydro-pyridazin-4-yl]methyl}benzoate.
abstract: The structure of the title compound, C(19)H(17)BrN(2)O(3), consists of two cyclic groups, viz. 4-(meth-oxy-carbon-yl)phenyl and 6-(4-bromo-phen-yl)-3-oxo-2,3,4,5-dihydro-pyridazin-4-yl, which are linked by a methyl-ene spacer. The pyridazine ring is twisted and the dihedral angle between its mean plane and that of the bromo-phenyl mean plane is 17.2 (2)°. The 4-(meth-oxy-carbon-yl)phenyl group shows a quasi-planar conformation, where the dihedral angle between the mean planes of the phenyl ring and carboxyl-ate ester group is 7.9 (4)°. Centrosymmetric inter-molecular N-H⋯O hydrogen bonds form dimers. These are linked by C-Br⋯O=C inter-actions [Br⋯O = 3.10 (1) Å] to form a one-dimensional polymeric structure running along the [1[Formula: see text]0] direction.
authors.forename: Adailton J
authors.initials: AJ
authors.lastname: Bortoluzzi
authors.forename: Luciana B P
authors.initials: LB
authors.lastname: Souza
authors.forename: Antônio C
authors.initials: AC
authors.lastname: Joussef
authors.forename: Emerson
authors.initials: E
authors.lastname: Meyer