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Could you demonstrate the reaction process for the synthesis of iminodisuccinic acid from fumaric acid and ammonium bicarbonate in methanol ?
Accepted Answer
The synthesis of iminodisuccinic acid (IDS) from fumaric acid and ammonium bicarbonate in methanol involves a multi-step reaction process:
1. Fumaric acid reacts with ammonium bicarbonate to form ammonium fumarate. This reaction is a simple acid-base neutralization reaction, where the carboxyl groups of fumaric acid react with the bicarbonate ions from ammonium bicarbonate.
2. Ammonium fumarate undergoes an intramolecular cyclization to form succinimide. This reaction is facilitated by heat and involves the formation of a cyclic amide by the reaction of the carboxyl group with the amine group.
3. Succinimide reacts with another molecule of fumaric acid in the presence of methanol to form iminodisuccinic acid. This step involves the opening of the succinimide ring by the attack of the carboxyl group of fumaric acid, followed by the elimination of a water molecule.
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