Textbook Question
How are the following pairs of carbohydrates, shown in a Fischer projection, related to each other? Are they structural isomers, enantiomers, diastereomers, or epimers? Identify each as the D- or L-isomer.
(b)
515
views
20. Carbohydrates
D vs L Enantiomers
Struggling with GOB Chemistry?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Identify the given molecule as diastereomer or epimer of D-sorbose.
A
Diastereomer
B
Epimer
Verified step by step guidance1
Identify the structure of the given molecule and D-sorbose from the images. Both are ketoses with the same carbon skeleton.
Compare the stereochemistry of each chiral center in the given molecule with D-sorbose. Note the orientation of the hydroxyl (OH) groups.
Determine if the molecules differ at more than one chiral center. If they do, they are diastereomers.
Check if the molecules differ at only one chiral center. If they do, they are epimers.
Conclude that the given molecule is a diastereomer of D-sorbose because they differ at more than one chiral center.
1:3mWatch next
Master D vs L Enantiomers Concept 1 with a bite sized video explanation from Jules
Start learningRelated Videos
Related Practice
D vs L Enantiomers practice set
Problem sets built by lead tutorsExpert video explanations