Question

Preparation of glycine by Strecker synthesis involves as one of the starting compounds ?

• A. Formaldehyde
• B. Acetaldehyde
• C. Methanol
• D. Either (a) or (c)

Answer 1

The correct option is D

Either (a) or (c)

Glycine has only two C's ; in Strecker synthesis one of which is supplied by $C{N}^{-}$ so the second must be supplied by an aldehyde having one C only i.e. HCHO or its precursor $C{H}_{3}OH(C{H}_{3}OH\to HCHO)$.