. Versatile Nature of Carbon . The nitrogen atom has a methyl group and a propyl group, so the compound is methylpropylamine, a secondary amine. Use nomenclature systems to name amines. Amines are derivatives of ammonia in which one or more hydrogen atoms are replaced by alkyl or aryl groups. Many important products require amines as part of their syntheses. This section also includes the preparation and properties of diazonium salts. Reaction with nitrous acid (HNO2), which functions as an acylating agent that is a source of the nitrosyl group (―NO), converts aliphatic primary amines to nitrogen and mixtures of alkenes and alcohols corresponding to the alkyl group in a complex process. Have questions or comments? Some polyfunctional amines are valuable pharmaceuticals, such as ephedrine and epinephrine (adrenaline), and anesthetics, such as novocaine. Among the hydrophilic functional groups is the carboxyl group found in amino acids, some amino acid side chains, and the fatty acid heads that form triglycerides and phospholipids. Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids. The compound is a derivative of aniline. Milder oxidation, using reagents such as NaOCl, can remove four hydrogen atoms from primary amines of the type RCH2NH2 to form nitriles (R―C≡N), and oxidation with reagents such as MnO2 can remove two hydrogen atoms from secondary amines (R2CH―NHR′) to form imines (R2C=NR′). Draw the structure for 2-amino-3-ethyl-1-chloroheptane. Amines are classified according to the number of carbon atoms bonded directly to the nitrogen atom. The amine functional group is as follows: Amines are classified as primary, secondary, or tertiary by the number of hydrocarbon groups attached to the nitrogen atom. Thus, although isopropylamine looks similar to isopropyl alcohol, the former is a primary amine, while the latter is a secondary alcohol. Information about phenylamine (aniline) . The reaction with phosgene, COC12 (the acid chloride of carbonic acid, H2CO3), has major industrial importance. Aryl amines are named as derivatives of aniline. The preparation and physical and chemical properties of the aromatic amine, phenylamine (aniline). Hydrogen peroxide (H2O2) and peroxy acids generally add an oxygen atom to the nitrogen of amines. RNH2+ R′X → RR′N+H2X−→ RNH2RR′NH + RN+H3X−. Although tertiary amines do not react with aldehydes and ketones, and secondary amines react only reversibly, primary amines react readily to form imines (also called azomethines or Schiff bases), R2C=NR′. Polyurethanes are formed from methylenedianiline via its diisocyanate. It is a primary amine having an ethyl group located para to the amino (NH2) group. The compound is named as a derivative of aniline: 3-bromoaniline or m-bromoaniline.