title: Three 1,2,4-triazole derivatives containing substituted benzyl and benzylamino groups.
abstract: The title compounds, 4-benzylamino-3-(4-methylbenzyl)-1H-1,2,4-triazol-5(4H)-one, C17H18N4O, (I), 3-(4-methylbenzyl)-4-(4-methylbenzylamino)-1H-1,2,4-triazol-5(4H)-one, C18H20N4O, (II), and 3-(4-chlorobenzyl)-4-(4-methylbenzylamino)-1H-1,2,4-triazol-5(4H)-one, C17H17ClN4O, (III), were obtained from the corresponding Schiff base in the presence of diglyme and NaBH(4). Each compound contains a 1,2,4-triazole ring and two benzene rings, which are essentially planar. The molecules are linked by a combination of intermolecular N-H...O and N-H...N hydrogen bonds. Additionally, there is a weak pi-pi stacking interaction in (I), involving the benzene ring of the aminobenzyl group and the partially aromatic 1,2,4-triazole moiety, with a centroid-centroid distance of 3.7397 (10) A.
authors.affiliation: Department of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayis University, 55139 Kurupelit-Samsun, Turkey.
authors.forename: Veysel T
authors.initials: VT
authors.lastname: Yilmaz
authors.forename: Canan
authors.initials: C
authors.lastname: Kazak
authors.forename: Erbil
authors.initials: E
authors.lastname: Ağar
authors.forename: Bahittin
authors.initials: B
authors.lastname: Kahveci
authors.forename: Kutalmis
authors.initials: K
authors.lastname: Guven