Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Electrophilic Substitution Reactions on Methine Carbon of the Unsymmetrical Tetradentate Schiff Base and its Complexes with Nickel(II) and Copper(II)
Kuninobu KasugaTakeo NagaharaTeruaki MasudaShunji KiyotaYasuo Yamamoto
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1984 Volume 57 Issue 6 Pages 1631-1636


A number of unsymmetrical tetradentate Schiff base complexes of nickel(II) and copper(II) having only one methine carbon in the ligand were synthesized and characterized by means of UV and 1H NMR spectra. The kinetic studies of the electrophilic substitution reactions on the methine carbon with N-halogenosuccinimide gave no support to an aromatic character of the chelate ring, being consistent with the results of 1H NMR studies for the nickel(II) complexes.

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