title: Complete 1H and 13C NMR spectral assignment of N-aralkylsulfonamides, N-sulfonyl-1,2,3,4-tetrahydroisoquinolines and N-sulfonyl-2,3,4,5-tetrahydro-1H-2-benzazepines. Conformational analysis of N-[((3',4'-dichlorophenyl)methyl)sulfonyl]-3-methyl-2,3,4,5-tetrahydro-1H-2-benzazepin.
abstract: The complete and unambiguous assignment of the 1H NMR and 13C NMR spectra of 26 N-aralkylsulfonamides, N-sulfonyl-1,2,3,4-tetrahydroisoquinolines and N-sulfonylbenz[c]azepines was performed on the basis of APT, DEPT, homonuclear (gs-COSY) and 1H-detected heteronuclear one-bond (gs-HMQC) and long-range (gs-HMBC) correlation experiments. The methylated 2,3,4,5-tetrahydro-1H-2-benzazepine derivative 26 adopts a chair conformation as determined by 1H-1H coupling analysis and gamma-gauche effects. This is supported by a single-crystal X-ray structure analysis.
authors.affiliation: Laboratorio de Servicios a la Industria y al Sistema Científico (UNLP-CIC-CONICET), Departamento de Química, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, Calles 47 esq, 115, B1900AJL La Plata, Argentina. jljios@quimica.unlp.edu.ar
authors.forename: Jorge L
authors.initials: JL
authors.lastname: Jios
authors.forename: Gustavo P
authors.initials: GP
authors.lastname: Romanelli
authors.forename: Juan Carlos
authors.initials: JC
authors.lastname: Autino
authors.forename: Héctor E
authors.initials: HE
authors.lastname: Giaccio
authors.forename: Helmut
authors.initials: H
authors.lastname: Duddeck
authors.forename: Michael
authors.initials: M
authors.lastname: Wiebcke