Chapter Outline Chapter 25 Amides and Amines: Organic Nitrogen Compounds Nylon is one of the materials used to give these colorful sails their strength and Introduction to General, Organic, and Biochemistry, 10e durability. John Wiley & Sons, Inc Morris Hein, Scott Pattison, and Susan Arena Chapter Outline Course Outline 25.1 Amides: Nomenclature and Physical Properties 25.2 Chemical Properties of Amides 25.3 Polyamides: Condensation Polymers 25.4 Urea 25.5 Amines: Nomenclature and Physical Properties 25.6 Preparation of Amines 25.7 Chemical Properties of Amines 25.8 Sources and Uses of Selected Amines Chapter 25 Summary 2 Chapter Outline Amides: Nomenclature and Physical Properties Amides are neutral nitrogen-containing compounds. They are not acidic or basic (neutral) and exist as molecules both in aqueous solution and as pure substances. These compounds contain carbonyl groups. The carbonyl group is directly connected to a nitrogen atom. 3 Chapter Outline Amides: Nomenclature and Physical Properties Amides are prepared when a carboxylic acid is heated in the presence of ammonia. 4 Chapter Outline Amides: Nomenclature and Physical Properties Ammonium salts of carboxylic acids can also be converted to amides by heating. 5 Chapter Outline Amides: Nomenclature and Physical Properties IUPAC Rules for Naming Amides 1. Name the longest continuous carbon chain containing the amide group. The carbonyl carbon atom is the #1 carbon atom. 2. Drop –oic from the corresponding carboxylic acid and add the suffix –amide. 6 Chapter Outline Amides: Nomenclature and Physical Properties IUPAC names for amides are formed from the IUPAC names of carboxylic acids. Here are two examples. 7 Chapter Outline Amides: Nomenclature and Physical Properties 3. Use a capital N (italicized) as the prefix if alkyl groups or other groups are attached directly to the amide nitrogen atom. 8 Chapter Outline Amides: Nomenclature and Physical Properties The common names for amides are formed from the common names of carboxylic acids. 9 Chapter Outline Amides: Nomenclature and Physical Properties IUPAC and common names of some amides are on Table 25.1 on the next slide . . . 10
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