Chapter 5: Q52 E_c. (page 148)
Draw the meso form of each of the following molecules, and indicate the plane of symmetry in each:
(a)

(b)

(c)

Short Answer
(c) The meso form of the given molecule, along with the plane of symmetry, is,

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Chapter 5: Q52 E_c. (page 148)
Draw the meso form of each of the following molecules, and indicate the plane of symmetry in each:
(a)

(b)

(c)

(c) The meso form of the given molecule, along with the plane of symmetry, is,

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Orient each of the following drawings so that the lowest-ranked group is toward the rear, and then assign R or S configuration
Assign R or S configurations to the chirality centers in the following molecules (blue = N)
The first step in the metabolism of glycerol, formed by digestion of fats, is phosphorylation of the pro-R group by reaction with adenosine triphosphate (ATP) to give the corresponding glycerol phosphate plus adenosine diphosphate (ADP). Show the stereochemistry of the product.

Ketones react with sodium acetylide (the sodium salt of acetylene,) to give alcohols. For example, the reaction of sodium acetylide with 2-butanone yields 3-methyl-1-pentyn-3-ol
(a)Is the product chiral?
(b)Assuming that the reaction takes place with equal likelihood from both Reand Sifaces of the carbonyl group, is the product optically active? Explain.
Assign R or S configurations to the chirality centers in the followingmolecules:
a.

b.

c.

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