ORGLIST: Schiff bases

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From: Kamil Wojciechowski (kamilwoj$##$chemix.ch.pw.edu.pl)
Date: Tue Jun 20 2000 - 05:46:03 EDT

Hello, I have some problems with salophenes (Schiff bases). The problem
is as follows: the synthesis of salophene from salicylaldehyde and
o-phenylenediamine is performed in MeOH/CH2Cl2. But once synthesised,
when dissolved in CH2Cl2 seems to be not stable. UV/VIS spectra confirm
that in CH2Cl2 solution the peaks from salicyaldehyde appears. That may
indicate decomposition of salophene. But is it possible that so
"neutral" solvent as dichloromethane is able to destroy the imine
 bonds ?
Thank you in advance 

--
Kamil Wojciechowski, Ph.D. student
Department of Analytical Chemistry,
Warsaw University of Technology,
Noakowskiego 3, 00-664 Warsaw, Poland.
Tel.: 0-22-660-56-31
 e-mail:  kamilwoj$##$ch.pw.edu.pl
          kamilwoj$##$chemix.ch.pw.edu.pl
 http://www.ch.pw.edu.pl/~kamilwoj/index.html

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