Week 2 Problem set 30BL

ATTN: answers to the below questions are due at the start of your lab period; these answers should be part of your pre-lab write-up.

1. Outline a detailed mechanism for the acid-catalyzed dehydration of cyclopentanol. help?

2. What is the limiting reagent in this week's experiment? help?

3. What is the expected alkene product formed from the dehydration of the following alcohols? Show major products only. help

4. What qualitative tests will be carried out in this experiment to determine the presence of a double bond in the final product? (see course reader). Show the reactions including the stereochemistry of the products.

5. Which peaks do you have to look for in the IR spectrum?

6. Supply a mechanism that explains the formation of product below.

7. What is the function of the sodium hydroxide solution in the benzoin experiment?

8. Why is it important to use fresh benzaldehyde? How can you purify benzaldehyde?