1. Chapter 8 Ethers Adel M. Awadallah Islamic University of Gaza
Organic chemistry for medicine and biology students
Chem 2311
Chapter 8
Ethers
By Prof. Dr.
Adel M. Awadallah
Islamic University of Gaza

7. Testing ethers for the presence of peroxides

8. The Grignard Reagent

9. Preparation of Ethers Symmetrical ethers (from alcohols)
B) Unsymmetrical ethers (Williamson’s Synthesis)

10. Cleavage of Ethers
Ethers are cleaved by strong acids such as HI

11. Epoxides (Oxiranes) Cyclic ethers with a three-membered rings

12. Reactions of Epoxides
When attacked by nucleophiles, epoxides undergo acid catalized ring opening.

13. Cyclic Ethers