7
Question
Fructose on reduction gives a mixture of two alcohols which are related as:
Fructose on reduction gives a mixture of two alcohols which are related as:
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Solution
The correct option is B Both (A) and (B)
Fructose on reduction gives a mixture of two alcohols which are related as diastereomers as well as epimers. Fructose is a ketose. Ketoses on reduction produce a new chiral carbon leading to the formation of two isomeric alcohols which are diastereomeric as well as C−2 epimers.
Epimers have two or more chiral C atoms but differ in configuration only at one C atom.
Diastereomers have two or more chiral C atoms but differ in configuration at one (or more but not all) C atoms.
Fructose on reduction gives a mixture of two alcohols which are related as diastereomers as well as epimers. Fructose is a ketose. Ketoses on reduction produce a new chiral carbon leading to the formation of two isomeric alcohols which are diastereomeric as well as C−2 epimers.
Epimers have two or more chiral C atoms but differ in configuration only at one C atom.
Diastereomers have two or more chiral C atoms but differ in configuration at one (or more but not all) C atoms.
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