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

J. JIOS, G. ROMANELLI, J. AUTINO, H. GIACCIO, H. DUDDECK, M. WIEBCKE

MAGNETIC RESONANCE IN CHEMISTRY

John Wiley and Sons, Ltd.

Lugar: Nueva York; Año: 2005 vol. 43 p. 1057 - 1062

0749-1581

The complete and unambiguous assignment of the 1H NMRand 13CNMRspectra 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 g-gauche effects. This is supported by a single-crystal X-ray structure analysis.