5. Chirality

What is the configuration of each of the asymmetric centers in the Fischer projection of

e. D-sorbose?

Which configuration (R or S) does the bottom asymmetric carbon have for the D series of sugars? Which configuration for the L series?

Convert the Fischer projections into line-angle drawings and assign (R) and (S) at each chiral center.

(a)

Convert the Fischer projections into line-angle drawings and assign (R) and (S) at each chiral center.

(c)

Assign the absolute stereochemistry for each of the following molecules drawn in their Fischer projection.

(d)

Draw the four stereoisomers of 1,3-dichloro-2-pentanol using

a. Fischer projections.

For each structure,

1. star (*) any asymmetric carbon atoms.

2. label each asymmetric carbon as (R) or (S).

3. draw any internal mirror planes of symmetry.

4. label the structure as chiral or achiral.

5. label any meso structures.

(f)

For each Fischer projection, label each asymmetric carbon atom as (R) or (S).

(e)

(f)

For each Fischer projection, label each asymmetric carbon atom as (R) or (S).

(g)

(h)

(i)

For each structure,

1. star (*) any asymmetric carbon atoms.

2. label each asymmetric carbon as (R) or (S).

3. draw any internal mirror planes of symmetry.

4. label the structure as chiral or achiral.

5. label any meso structures.

(a)

(b)