Intramolecular Proton Transfer Inducing a Biszwitterion Structure in a N4 Schiff Base

X-ray and NMR evidences of a sulfonated and tetradentate N4 Schiff base pointed out unusual iminium groups. This produces amide groups and the protons transfer leads to an overall biszwitterion structure.

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Bibliographic Details
Published in:Chemistry letters 2004-02, Vol.33 (2), p.178-179
Main Authors: Karamé, Iyad, Tommasino, M. Lorraine, Faure, René, Fenet, Bernard, Lemaire, Marc
Format: Article
Language:English
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Description
Summary:X-ray and NMR evidences of a sulfonated and tetradentate N4 Schiff base pointed out unusual iminium groups. This produces amide groups and the protons transfer leads to an overall biszwitterion structure.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2004.178