Collect. Czech. Chem. Commun. 1980, 45, 1575-1580

13C-NMR spectra of benzenesulphonyl derivatives

Jaroslav Horyna, Antonín Lyčka and Dobroslav Šnobl

Research Institute of Organic Syntheses, 532 18 Pardubice-Rybitví


13C-NMR chemical shifts and 1J(CH) and 3J(CH) coupling constants have been determined for a series of C6H5SO2X derivatives (X = Cl, C6H5, Ona, OCH3, OC2H5, OC6H5, NH2, NHNH2, N(CH2)5, NHC6H5) in hexadeuteriodimethyl sulphoxide solutions, and the substituent shift values of benzene nucleus have been calculated for the individual SO2X groups,. These groups, carrying partial positive charge at the sulphur atom, have electron-acceptor effects on the benzene nucleus, and increasing electron-donor character of the substituent X is connected with a proportional increase of mesomeric acceptor influence on the benzene nucleus and with increase in absolute values of 1J(CH).