Concept explainers
a)
Interpretation:
The number of stereoisomers that are possible for ketoheptose is to be stated.
Concept Introduction:
Stereoisomers are the isomers having same structural formula but they differ in the arrangement of atoms in space.
Enantiomer:
An enantiomer also known as an optical isomer is one of two stereoisomers that are mirror images of each other that are non-supposable.
The number of possible stereoisomers is calculated as
b)
Interpretation:
The number of stereoisomers that are possible for aldoheptose is to be stated.
Concept Introduction:
Stereoisomers are the isomers having same structural formula but they differ in the arrangement of atoms in space.
Enantiomer:
An enantiomer also known as an optical isomer is one of two stereoisomers that are mirror images of each other that are non-supposable.
The number of possible stereoisomers is calculated as
c)
Interpretation:
The number of stereoisomers that are possible for a ketotriose is to be stated.
Concept Introduction:
Stereoisomers are the isomers having same structural formula but they differ in the arrangement of atoms in space.
Enantiomer:
An enantiomer also known as an optical isomer is one of two stereoisomers that are mirror images of each other that are non-supposable.
The number of possible stereoisomers is calculated as
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Chapter 16 Solutions
Essential Organic Chemistry, Global Edition
- 5-Deoxyglucose will close to a?arrow_forwardLabel the four stereogenic centers in sorbitol as R or S. (see attached file)arrow_forward(a) Draw the more stable chair form of fucose, an essential monosaccharide needed in the diet and a component of carbohydrates on mammalian and plant cell surfaces. (b) Classify fucose as a D- or Lmonosaccharide. (c) What two structural features are unusual in fucose?arrow_forward
- Consider alanine a. How many chiral centers? b. How many stereoisomers? c. Draw the fischer projection for each stereoisomer and determine the absolute configuration for each chiral center.arrow_forwardThe following trisaccharide derivative is important to human health.The A ring is ?-deoxy?arrow_forwarda.Label the four stereogenic centers in sorbitol as R or S. b.How are sorbitol and A related? c. How are sorbitol and B related?arrow_forward
- Which one is b-D glucose and which one is a-L glucose ? 2. Which one is b-fructose and which a-L fructose?arrow_forwardDraw the two possible Haworth structures for each the following sugars in their cyclized form. Be sure to label each as an ? or a ? anomer.arrow_forwardA reddish color is obtained when compound A (a disaccharide) is reacted with Benedict solution. Is this compound more likely maltose or sucrosearrow_forward
- (a) Convert each cyclic monosaccharide into a Fischer projection of its acyclic form. (b) Name each monosaccharide. (c) Label the anomer as α or β.arrow_forwardA D-aldopentose A is reduced to an optically active alditol. Upon Kiliani–Fischer synthesis, A is converted to two D-aldohexoses, B and C. B is oxidized to an optically inactive aldaric acid. C is oxidized to an optically active aldaric acid. What are the structures of A–C?arrow_forwardHow many chirality centers are contained in (a) the aldotetrose and (b) the ketopentose just given below? How many stereoisomers would you expect from each general structure?arrow_forward
