Answer to Question #101918 in Organic Chemistry for Manshi

Question

Ethanamine to methanamine

Answer 1

Transformation of ethanamine (C₂H₅NH₂) to methanamine (CH₃NH₂) is associated with the reduction of carbon numbers in the compound structure and can be performed using the following reactions.

First, ethanamine is converted to ethanol using diazonium salt:

C₂H₅NH₂ --(HONO)--> C₂H₅OH

Next, ethanol is transformed to acetic acid via oxidation:

C₂H₅OH --(K₂Cr₂O₇/H₂SO₄)--> CH₃CHO

CH₃CHO --(oxidation)--> CH₃COOH

Third, acetatic acid is converted to ethanamide:

CH₃COOH --(NH₃)--> CH₃COONH₄

CH₃COONH₄ --(heat)--> CH₃CONH₂

Finally, ethanamide is transformed into methanamine:

CH₃CONH₂ --(Br₂/KOH)--> CH₃NH₂