Which of the following pairs of D-aldohexoses would produce the same product when subjected to Wohl degradation?

Question

Quizplus · Accepted Answer

D-allose and D-altrose are C-3 epimers, differing only in the configuration around the C-3 carbon. Wohl degradation involves the shortening of the carbon chain by one carbon atom from the aldehyde end, which would not be affected by differences at the C-3 position. Therefore, D-allose and D-altrose would produce the same product upon Wohl degradation.

Which of the Following Pairs of D-Aldohexoses Would Produce the Same