How can I synthesize alpha beta unsaturated amino acids?

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Abdel-Nasser Ahmed El-Shorbagi

It will be directly change to the imine by mesomeric effect guided by the carboxylic group.

Then it will be easily attacked by water to produce alpha keto acid.

This means that you can obtain your compound if you undergo the reaction between an alpha keto acid with ammonia dissolved in THF (preferred) or absolute alcohol

Chiranjeev Sharma

Thank you sir for the answer, may I have some references for the suggested synthesis.