93728-32-6Relevant articles and documents
1H- And13C-NMR and electron ionization (EI) mass spectrometric study of o- And p-substituted 1,n-diarylsulfonylalkanes, XC6H4so2(CH2)nso 2C6H4X (n = 2-5, 8, 10)+
Pihlaja, Kalevi,Kabilan, Senthamaraikannan,Ganapathi, Athiappan,Sankar, Punnaivanam
, p. 601 - 612 (2007/10/03)
1,n-Diphenylsulfonylalkanes, PhSO2(CH2)nSO2Ph (n =2-5, 8, 10) and their o- or p-Cl or -OMe derivatives were prepared and their 1H- and 13C-NMR and EI mass spectra recorded and analyzed. The chemical shifts of the aliphatic α- and β-carbons showed a clear dependence on the o-aryl substitution, the o-Cl being the most shielding for both. Clear low-field effects were found also for the aliphatic α-protons in o-Cl and o-OMe derivatives. In case of p-OMe derivatives a palpable shielding of the aliphatic α-protons was also found similarly to the β-protons of the o-OMe derivatives. Characteristic mass spectrometric fragmentations which reflected both the influence of the aryl substitution and the length of the alkyl chain were observed and sometimes also exhibited the sulphinic acid rearrangement.