140 likes | 163 Vues
Organic chemistry for medicine and biology students Chem 2311 Chapter 8 Ethers By Prof. Dr. Adel M. Awadallah Islamic University of Gaza. Testing ethers for the presence of peroxides. The Grignard Reagent. Preparation of Ethers. Symmetrical ethers (from alcohols)
E N D
Organic chemistry for medicine and biology students Chem 2311 Chapter 8 Ethers By Prof. Dr. Adel M. Awadallah Islamic University of Gaza
Preparation of Ethers • Symmetrical ethers (from alcohols) B) Unsymmetrical ethers (Williamson’s Synthesis)
Cleavage of Ethers Ethers are cleaved by strong acids such as HI
Epoxides (Oxiranes) Cyclic ethers with a three-membered rings
Reactions of Epoxides When attacked by nucleophiles, epoxides undergo acid catalized ring opening.