Textbook: Smith 3rd Ed. (2010)

Chapter 9: Alcohols, Ethers, and Epoxides

Practice Problems (No matching mendel sets were found.)

Individual Problems

Problem # 348

For the reaction below, draw the structures of the carbocation intermediate and the final product.

Problem # 519
 

Let's work through an elimination reaction. Draw the structures for each of the species in the three boxes below (protonated thiol, carbocation, and alkene). Also draw curved arrows to show electron movement. 

Problem # 697

Rank the following compounds in order of decreasing boiling point.

Also, make a guess about their relative solubilities in water. Explain your reasoning.

Problem # 698

When propyl bromine is treated with KF in benzene no reaction takes place. But when the crown ether 18-Crown-6 is added to the reaction mixture the desired propyl fluoride product is produced. Explain.

Problem # 701

The acid-catalyzed condensation of alcohols to form ethers is reversable; ethers can be hydrolyzed back to alcohols. How can the direction of this equilibrium be controlled to preferentially form ethers?

Problem # 347

For the reaction below, draw the structures of the carbocation intermediate and the final product.

Problem # 333

Let's go over how a carbocation can form from an alcohol.

Write in the curved arrows to show the formation of the protonated alcohol, and water acting as a leaving group to form a carbocation.

Problem # 341
 

 Predict the product(s) of the reaction below, and used curved arrows to show a mechanism.

Problem # 677

Show a mechanism for the acid-catalyzed cyclization (condensation) of 1,4-butanediol.

Problem # 699
 

Show how each compound can be prepared from the indicated starting material.

All carbon sources must contain three carbons or less.

Problem # 700
 

Write out a mechanism for the reaction below using curved arrows. Be sure to include formal charges. 

Problem # 703

Show two ways to prepare the ether below from a combination of an alcohol and an alkyl halide via the Williamson ether synthesis.

Is one way better than the other? Why?

Problem # 702
 

Show how to prepare each compound starting from propylene oxide.

(Propylene oxide image below courtesy of Wikipedia.)