Which of the following can undergo keto-enol tautomerism?
A) 2,4-dimethyl-3-pentanone
B) 2,2,4,4-tetramethyl-3-pentanone
C) both a and b
D) neither a nor b

Question

Quizplus · Accepted Answer

2,4-dimethyl-3-pentanone has an alpha hydrogen adjacent to the carbonyl group, allowing it to undergo keto-enol tautomerism. 2,2,4,4-tetramethyl-3-pentanone lacks alpha hydrogens, so it cannot undergo tautomerism.

Which of the Following Can Undergo Keto-Enol Tautomerism