par Martin, Ricardo;Defay, Nicole ;Evrard, France ;Figeys, Hubert
Référence Bulletin des Sociétés chimiques belges, 73, 3-4, page (199-213)
Publication Publié, 1964
Référence Bulletin des Sociétés chimiques belges, 73, 3-4, page (199-213)
Publication Publié, 1964
Article révisé par les pairs
Résumé : | – N.M.R. spectra of aldehydes, methylketones and esters of phenanthrene, substituted in positions 2, 3 and 9, have been recorded at 60 Mc. In the nine cases examined in this work, it is possible to determine the position of substitution, without ambiguity. – Introduction of a methyl group in position 4 (angular position) has a deshielding effect on the proton located on carbon 5 (opposite angular position). – The main results are summarized in table I and figure 1. Copyright © 1964 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim |