Determine the starting materials based on the acetal group present.

Identify A through O:

In Section 17.7.4, we studied the acid-catalyzed hydrolysis of acetals. The acetal shown here resists hydrolysis by the mechanism in Figure 17.63. Why? [Draw the intermediates as if the reaction would occur, then analyze the intermediates for any problems.]

Provide the chemical steps necessary for the following synthesis.

Provide the chemical steps necessary for the following synthesis.

For each of the following reactions, identify the bonds that are broken and formed. Be sure to indicate whether the bond that is broken is a σ bond or a π bond.

(e)

What are the products of the following reactions?

e.

Draw the products of the following reactions:

b.