Consider the following reaction sequence.
1 ) HCN
2 ) H₂/Pd
3 ) H₃O⁺
The result of this treatment to a monosaccharides would be:

Question

Consider the following reaction sequence. 1 ) HCN 2 ) H₂/Pd 3 ) H₃O⁺ The result of this treatment to a monosaccharides would be:

Quizplus · Accepted Answer

The first step, HCN, adds a cyanide group to the monosaccharide, forming a cyanohydrin. The second step, H₂/Pd, reduces the cyanohydrin to an aldehyde while adding one carbon atom to the carbon chain. The third step, H₃O⁺, oxidizes the aldehyde to a carboxylic acid, but it does not affect the length of the carbon chain. Therefore, the overall result is lengthening the carbon chain by one carbon atom.

Consider the Following Reaction Sequence