The cyclization reaction of fructose is different from that of glucose because ________

Question

Quizplus · Accepted Answer

Fructose can undergo a different form of cyclization compared to glucose because of its unique structure containing both an aldehyde and a ketone group. In fructose, the ketone group can react with the aldehyde group to form a five-membered ring called a hemiketal, whereas glucose forms a six-membered ring called a hemiacetal. Therefore, the correct answer is A, that a five-membered ring instead of a six-membered ring is formed.

The Cyclization Reaction of Fructose Is Different from That of Glucose