From: 邢 国平 (alex_xgp$##$hotmail.com)
Date: Fri Aug 18 2006 - 01:30:39 EDT
Philip Cherian,
Based on your result, I guess, the reaction mixture maybe contain a trace
of metal and/or lewis acid, especially contain a trace of Fe. Because
bromine and chlorine atom can be introduced into the benzene ring in the
bromination and chlorination with a trace of Fe.
Alex
2006.08.19
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