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Question 15.4: Indicate whether each of the following compounds is a hemiac......

Indicate whether each of the following compounds is a hemiacetal.

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In each part, we will be looking for the following structural feature: the presence of an —OH group and an —OR group attached to the same carbon atom.
a. We have an —OH group and an —OR group attached to the same carbon atom. The compound is a hemiacetal.
b. We have an —OH group and an —OR group attached to the same carbon atom. The compound is a hemiacetal.
c. The —OH and —OR groups present in this molecule are attached to different carbon atoms. Therefore, the molecule is not a hemiacetal.
d. We have a ring carbon atom bonded to two oxygen atoms: one oxygen atom in an  OH substituent and the other oxygen atom bonded to the rest of the ring (the same as an R group). This is a hemiacetal.

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