Classify these structures as hemiacetal, hemiketal...

Question

Classify these structures as hemiacetal, hemiketal, acetal, ketal, or other.

Johnny Betancourt · Accepted Answer

We are asked to classify these structures as hemiacetal, hemiketal, acetal, ketal, or others.The general structures are shown below: [readmore]We go through the following steps to identify the type: Step 1. Find the carbon center.Step 2. Simplify the groups as OR, OH, R and H. Step 3. Compare to the general structures. Molecule AStep 1. Find the carbon center.Step 2. Simplify the groups as OR, OH, R and H. OR group - blueOH group - greenR group - purpleThe ring is attached twice to the carbons so it is counted as 2 groups. Step 3. Compare to the general structures. We have 2 R, 1 OH and 1 OR group. Moleucule A is a HemiketalMolecule BStep 1. Find the carbon center.Recall that hydrogens are implied, so there must be an H attached to the center C. Step 2. Simplify the groups as OR, OH, R and H. OR group - blueOH group - greenR group - purpleThe ring is attached twice to the carbons so it is counted as 2 groups. Step 3. Compare to the general structures. We have 1 R, 1 H and 2 OR groups. Moleucule B is an AcetalMolecule CStep 1. Find the carbon center.Step 2. Simplify the groups as OR, OH, R and H. OR group - blueOH group - greenR group - purpleThe ring is attached twice to the carbons so it is counted as 2 groups. Step 3. Compare to the general structures. We have 2 R and 2 OR groups. Moleucule C is a KetalMolecule DStep 1. Find the carbon center.Step 2. Simplify the groups as OR, OH, R and H. OR group - blueOH group - greenR group - purpleStep 3. Compare to the general structures. We have 2 R and 2 OR groups. Moleucule D is a KetalMolecule EStep 1. Find the carbon center.There are 2 carbons centers here.Recall that hydrogens are implied, so there must be an H attached to the center C. This will not give us a definitive classification. Molecule E is considered Other. Molecule FStep 1. Find the carbon center.Step 2. Simplify the groups as OR, OH, R and H. OR group - blueOH group - greenR group - purpleStep 3. Compare to the general structures. We have 2 R and 2 OH groups. This is simply a Diol (2 alcohol groups)Moleucule F is considered Other. Molecule GStep 1. Find the carbon center.Recall that hydrogens are implied, so there must be an H attached to the center C. Step 2. Simplify the groups as OR, OH, R and H. OR group - blueOH group - greenR group - purpleThe ring is attached twice to the carbons so it is counted as 2 groups. Step 3. Compare to the general structures. We have 1 R, 1 OH, 1 H and 1 OR group.Moleucule G is a Hemiacetal

Problem: Classify these structures as hemiacetal, hemiketal, acetal, ketal, or other.

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Problem Details

Problem: Classify these structures as hemiacetal, hemiketal, acetal, ketal, or other.

FREE Expert Solution

Problem Details

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