1) Reaction of Amine Group: Amine group in amino acids is basic and
reacts with acids to form salts, in same way as amine does.
Reaction of Carboxylic Acids Group in Amino Acid…
2) Reaction of Carboxylic Acid Group with Aqueous
Alkali: Amino acid reacts with aqueous alkali such as sodium or potassium hydroxide to form
a salt and water. Below is aminoethanoic acid.
3) Esterification with Alcohols: Amino acids esterified in same way as
carboxylic acids due to carboxylic acid in amino acids. Amino acid heated with an alcohol in
presence of concentrated sulphuric acid. Produces as ester. The acidic conditions pronate basic
amine group of ester.