Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: Stoian on January 04, 2011, 11:01:00 AM
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Does anyone know the reaction mechanism for the reaction:
Terephthalic acid + Ethylene glycol ---> bis(2-hydroxyetil)terephthalat (no cathalyst,aprox 180-200ºC)
and
dimethylterephthalate + Ethylene glycol ---->bis(2-hydroxyetil)terephthalat
(aprox.270ºC,cathalyst: Sb2O3 ).
please help me!
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Both reactions are acyl substitutions.
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could you be more explicit? show me!
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could you be more explicit? show me!
Okay.
Why does the catalyst you specified facilitate the reaction?
Do you know how to prevent polymerization?
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Thanks a lot for the reaction mechanism!
i need this for a project( the synthesis of the poly ethylene terephthalate).
i think i was wrong about the catalyst.i didn't know much at the time. the catalyst used is a Zn acetate.
the polymerization should not be a problem in this process.