Amines Derivatives of ammonia in which

Many weak bases are organic compounds called amines, derivatives of ammonia in which one or more hydrogen atoms are replaced by another group. Methyl-amine, for example, is an organic amine responsible for the odor of rotting fish. 

Amines Derivatives of ammonia in which one or more hydrogen atoms has been replaced by organic groups. 

Amines are derivatives of ammonia in which one or more of the hydrogens is replaced with an alkyl, aryl, cycloalkyl, or heterocycHc group. When more than one hydrogen has been replaced, the substituents can either be the same or different. Amines are classified as primary, secondary, or tertiary depending on the number of hydrogens which have been replaced. It is important to note that the designations primary, secondary, and tertiary refer only to the number of substituents and not to the nature of the substituents as in some classes of compounds. 

A common class of weak bases consists of the organic molecules known as amines. An amine can be considered to be a derivative of ammonia in which one or more hydrogen atoms have been replaced by hydrocarbon groups. 

An amine is a derivative of ammonia in which hydrogen atoms are replaced by carbon atoms ... 

Amines are organic derivatives of ammonia in which one or more hydrogen atoms in ammonia has been replaced by alkyl groups. There are three structural types of amine primary, secondary and tertiary. They are classified according to the number of alkyl groups attached to the nitrogen atom. 

Amines are probably best viewed as derivatives of ammonia in which one or more N—H bonds are replaced by N—C bonds. The resulting amines are classified as primary if one N—C bond is present, secondary if two N—C bonds are present, and tertiary if all three N—H bonds in NH3 have been replaced by N—C bonds (Fig. 22.15). Examples of some common amines are given in Table 22.6. 

Amines are derivatives of ammonia in which one or more of the hydrogen atoms has been replaced by an alkyl group. They are divided into primary RNH2), secondary (R2NH) or tertiary amines (RjN) according to the number of hydrogen atoms that have been replaced. The introduction of a fourth alkyl group leads to the tetra-alkyl or quaternary ammonium salts (R N X"). 

Amines.—This compound and similar ones derived from other hydrocarbons are known as amines, and were first discovered by Wurtz in 1848. Hofmann, in 1850, showed conclusively that these nitrogen containing compounds are to be considered as derivatives of ammonia in which the monovalent nitrogen radical (— NH2), a residue of ammonia, is linked to an alkyl radical. Methyl iodide is made up of the methyl radical linked to iodine and in the above reaction the iodine leaves the methyl and unites with one hydrogen from the ammonia, the place of the iodine being taken by the residue of the ammonia (—NH2). The reaction becomes then ... 

Amine A compound that can be considered a derivative of ammonia, in which one or more hydrogens are replaced by alkyl or aryl groups. 

Amines are organic derivatives of ammonia in which one, two, or all three of the hydrogens have been replaced by an alkyl or aryl group. The amines are classified as primary, secondary, and tertiary amines, respectively. 

Tertiary amine (Section 20.1) A derivative of ammonia in which there are three carbons bonded to a nitrogen atom. Tertiary amines have a formula R3N where the R groups can he the same or different. 

Again we use the two-way arrow to show that intact NH3 molecules as well as NH4 and OH ions will he present in the solution. Many other weak bases are amines. They can he thought of as derivatives of ammonia in which one or more of the H atoms have heen replaced hy methyl groups or longer hydrocarbon chains. 

A bitter taste appears to be a common feature of a base. It is a fact that many medicinal substances are nitrogen bases, substances that organic chemists call amines. Such substances are considered derivatives of ammonia, in which one or more hydrogen atoms have been substituted by carbon-containing groups. Here, for example, are the structures of some amines ... 

Amines are derivatives of ammonia, in which one, two, or three of the hydrogens have been replaced by aUcyl or aryl groups. Therefore, amines are related to ammonia in the same sense as ethers and alcohols are related to water. Note, however, that the designations primary, secondary, and tertiary (see below) are used in a different way. In alcohols, ROH, the nature of the R group defines this designation in amines, the number of R substituents on nitrogen determines the amine classification. 

Amines are compounds in which a nitrogen atom is bonded to one or more carbon atoms. They can be considered as derivatives of ammonia in which one, two or three hydrogen atoms are replaced by hydrocarbon groups Ri, R2 and R3. These three groups can be acyclic or benzenic, identical or different. 

Alpha-particle production a common mode of decay for radioactive nuclides in which the mass number changes. (21.1) Amine an organic base derived from ammonia in which one or more of the hydrogen atoms are replaced by organic groups. (7.6 22.4)... 

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