Draw the structure of the amine or quaternary ammonium salt produced when each of the following pairs of compounds reacts in the presence of a strong base.

1. a. Trimethylamine and ethyl bromide
2. b. Diisopropylamine and methyl bromide
3. c. Ethylmethylpropylamine and methyl chloride
4. d. Ethylamine and ethyl chloride

Interpretation:

Structure of amine or quaternary ammonium salt that is obtained when trimethylamine and ethyl bromide is reacted in presence of strong base has to be drawn.

Concept Introduction:

Alkylation reaction is a reaction in which the transfer of alkyl group from one molecule to another molecule takes place.  While considering amines, the alkylating agent that is used is alkyl halides.  Alkylation is done under basic conditions.  The general equations for amines alkylation process is,

  Ammonia + Alkyl halide →Base 1° amine1° amine + Alkyl halide →Base 2° amine2° amine + Alkyl halide →Base 3° amine3° amine + Alkyl halide →Base quaternary ammonium salt

Given reactants are trimethylamine and ethyl bromide.  In this, the amine given is a tertiary amine.  When tertiary amine is treated with an alkyl halide, the product obtained is a quaternary ammonium salt...

Interpretation:

Structure of amine or quaternary ammonium salt that is obtained when diisopropylamine and methyl bromide is reacted in presence of strong base has to be drawn.

Concept Introduction:

Alkylation reaction is a reaction in which the transfer of alkyl group from one molecule to another molecule takes place.  While considering amines, the alkylating agent that is used is alkyl halides.  Alkylation is done under basic conditions.  The general equations for amines alkylation process is,

  Ammonia + Alkyl halide →Base 1° amine1° amine + Alkyl halide →Base 2° amine2° amine + Alkyl halide →Base 3° amine3° amine + Alkyl halide →Base quaternary ammonium salt

Interpretation:

Structure of amine or quaternary ammonium salt that is obtained when ethylmethylpropylamine and methyl chloride is reacted in presence of strong base has to be drawn.

Concept Introduction:

Alkylation reaction is a reaction in which the transfer of alkyl group from one molecule to another molecule takes place.  While considering amines, the alkylating agent that is used is alkyl halides.  Alkylation is done under basic conditions.  The general equations for amines alkylation process is,

  Ammonia + Alkyl halide →Base 1° amine1° amine + Alkyl halide →Base 2° amine2° amine + Alkyl halide →Base 3° amine3° amine + Alkyl halide →Base quaternary ammonium salt

Interpretation:

Structure of amine or quaternary ammonium salt that is obtained when ethylamine and ethyl chloride is reacted in presence of strong base has to be drawn.

Concept Introduction:

Alkylation reaction is a reaction in which the transfer of alkyl group from one molecule to another molecule takes place.  While considering amines, the alkylating agent that is used is alkyl halides.  Alkylation is done under basic conditions.  The general equations for amines alkylation process is,

  Ammonia + Alkyl halide →Base 1° amine1° amine + Alkyl halide →Base 2° amine2° amine + Alkyl halide →Base 3° amine3° amine + Alkyl halide →Base quaternary ammonium salt