Identify the following alkenes as E or Z, if appropriate.

(a)

Identify the following alkenes as E or Z, if appropriate.

(b)

Identify the following alkenes as E or Z, if appropriate.

(c)

Identify the following alkenes as E or Z, if appropriate.

(d)

Identify the hydrogen bond donors and hydrogen bond acceptors in the following molecules.

(a)

Identify the hydrogen bond donors and hydrogen bond acceptors in the following molecules.

(b)

Identify the hydrogen bond donors and hydrogen bond acceptors in the following molecules.

(d)

Predict the product of the following reactions.

(b)

In each pair, which would you expect to have the higher melting point?

(a)

In each pair, which would you expect to have the higher melting point?

(b)

Draw Fischer projections of the following molecules.

(a)

Draw Fischer projections of the following molecules.

(b)

Draw Fischer projections of the following molecules.

(c)

In this attempt to convert the line angle drawing of d-erythrose (shown) to the Fischer projection (shown), by viewing it from a certain direction (shown), a mistake was made. What was the mistake?

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Convert each line-angle drawing, using appropriate bond rotations, into a correct Fischer projection.

(a)

Convert each line-angle drawing, using appropriate bond rotations, into a correct Fischer projection.

(b)

Convert each line-angle drawing, using appropriate bond rotations, into a correct Fischer projection.

(c)

Categorize the following monosaccharides as d or l.

(a)

Draw the structure of and name the enantiomeric diols that result from the cis-dihydroxylation of the alkene shown.

Which of the following molecule pairs are epimers?

(a)

(b)

(c)

Using the Haworth projection, draw the furanose ring that would form between the C₅ hydroxyl group and the ketone at C₂ for the molecule shown.

Using the Haworth projection, draw the furanose ring that would form between the C₄ hydroxyl group and the aldehyde at C₁ for the molecule shown.

Suggest a mechanism by which α-d-glucopyranose is converted to β-d-glucopyranose in acid. [See Figure 27.18.]

Suggest a mechanism by which α-d-glucopyranose is converted to β-d-glucopyranose in base. [See Figure 27.18.]

Draw the α- and β-anomers of d-talopyranose. [The structure of talose is in Figure 27.11.]

Draw the α- and β-anomers of d-mannofuranose. [The structure of mannose is in Figure 27.11.]

Draw the structure that corresponds to the given name.

(b) Benzyl α-d-gulopyranoside

Predict the product of the following etherification reactions.

(a)

Predict the product of the following etherification reactions.

(b)

Suggest a synthesis of the following acylated sugars.

(a)