Concept explainers
(a)
Interpretation:
The Fischer projection structure of
Concept introduction:
Fischer projections are used to represent the configurations about asymmetric carbons in a molecule. Perpendicular intersecting lines represent a carbon atom from the longest carbon chain. The bonds between carbon atoms from this chain are represented by vertical lines. Bonds to the two groups attached to each carbon are represented by horizontal lines. Horizontal bonds point toward the viewer whereas vertical bonds point away from the viewer.
The Fischer projections of the isomers of glyceraldehyde gives, the D/L system of classification of carbohydrates. If the location of the
D and L sugars are isomers of each other.
Epimers are isomers that differ in configuration at only one asymmetric carbon.
(b)
Interpretation:
The Fischer projection structure of L-arabinose is to be drawn.
Concept introduction:
Fischer projections are used to represent the configurations about asymmetric carbons in a molecule. Perpendicular intersecting lines represent a carbon atom from the longest carbon chain. The bonds between carbon atoms from this chain are represented by vertical lines. Bonds to the two groups attached to each carbon are represented by horizontal lines. Horizontal bonds point toward the viewer whereas vertical bonds point away from the viewer.
The Fischer projections of the isomers of glyceraldehyde gives, the D/L system of classification of carbohydrates. If the location of the
D and L sugars are isomers of each other.
Epimers are isomers that differ in configuration at only one asymmetric carbon.
(c)
Interpretation:
The Fischer projection of
Concept introduction:
Fischer projections are used to represent the configurations about asymmetric carbons in a molecule. Perpendicular intersecting lines represent a carbon atom from the longest carbon chain. The bonds between carbon atoms from this chain are represented by vertical lines. Bonds to the two groups attached to each carbon are represented by horizontal lines. Horizontal bonds point toward the viewer whereas vertical bonds point away from the viewer.
The Fischer projections of the isomers of glyceraldehyde gives, the D/L system of classification of carbohydrates. If the location of the
D and L sugars are isomers of each other.
Epimers are isomers that differ in configuration at only one asymmetric carbon.
(d)
Interpretation:
The Fischer projection structure of C2 epimer of
Concept introduction:
The pair of stereoisomers is nothing but Epimers. Epimers are isomers that shows difference in the configuration at only one chiral centre.

Want to see the full answer?
Check out a sample textbook solution
Chapter 5 Solutions
ORG CHEM W/ EBOOK & SW5 + STUDY GUIDE
- H I T H HH H -H C. H- Identify and select all structures below that represent a constitutional isomer(s) of the compound shown above. H- H CIH H H H HHHH H H 0 ·H H– 冊 CH CHI HH C- H- H H- H H A. H H C H H- -H HH H B. H- -H D. H H H H • H -H E. -H H H HICH T HHH F. H-arrow_forwardPolylactic acid (shown below) is a biodegradable polymer used for food packaging. Identify the monomer(s) used in the production of this polymer using a condensation process.arrow_forwardDraw the product of the reaction shown below. Ignore small byproducts that would evaporate pleasearrow_forward
- Poly(ethylene adipate) is a biodegradable polyester (shown below). Identify the type of polymerization process used in the production of this polymer.arrow_forwardPolymers may be composed of thousands of monomers. draw two repeat units(dimer) of the polymer formed in this reaction. assume there are hydrogen atoms on the two ends of the dimer. ignore inorganic byproducts pleasearrow_forwardDraw the product of the reaction shown below. Use a dash or wedge bond to indicate stereochemistry of substituents on asymmetric centers, Ignore inorganic byproductsarrow_forward
- Draw the product of this reaction please. Ignore inorganic byproductsarrow_forwardOne of the pi molecular orbitals of 1,3-butadiene (CH2=CHCH=CH2) is shown below. Please identify the number of nodal planes perpendicular to the bonding axisarrow_forwardDraw the monomers required to synthesize this condensation polymer please.arrow_forward
- Provide the correct systematic name for the compound shown here. Please take into account the keyboard options belowarrow_forwardcurved arrows are used to illustrate the flow of electrons. using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s)arrow_forwardIdentify the 'cartoon' drawing of the acceptor orbital in the first mechanistic step of an electrophilic addition reaction of butadiene with HBr. Pleasearrow_forward
