last updated Friday, November 5, 2004

Problem set  Meeting 12 


1. For the Grignard reaction, water should be excluded as much as possible. How is this  accomplished here?

2. How do you know that the reaction started? How can you initiate the reaction?

3. Why is it important to mix the bromobenzene and the diethyl ether before pouring it into the addition funnel?

4. Why is it important to add this solution slowly?

5. Outline a separation scheme for the isolation of benzoic acid starting at the point the Grirgnard solution was poured onto the dry ice. Show appropriate chemical equations.

6. Why are is diethyl ether used as solvents for Grignard reactions?