Question

SC PRACTICE PROBLEM 18.4 What products are formed when each of the following amines is treated with HCI: (a) CH,CHNH (b) (CH,CH), NH (C) (CH,CH2),N? CH₃ CH2 N-H/+cl- a.) CH₃ CH₂ NH₃ + HCl -> 5 b.) (CH₃ CH₂) z NH + HCl -> CH₃ CH₂ - NHI+cl City CH₂ I(Chorheln url CH3 CH₂ 7 c) (CH₃ CH2)₂ N + HCl - > LEHICH IH CHg ata

Answer 1

(a)

Ethyl amine (CH3CH2NH2) reacts with HCl to give ethylammonium chloride. Primary amine group of ethyl amine is basic in nature and reacts with acidic HCl to form quaternary ammonium chloride salt. The chemical reaction is as shown below:

CH3CH2NH2 anschone wiat — + HCI CH,CHÚNăH Clº anoble e r Ethyl amine landet Ethylammonium chloride

(b)

Diethyl amine ((CH3CH2)2NH) reacts with HCl to give diethylammonium chloride. Secondary amine group of diethyl amine is basic in nature and reacts with acidic HCl to form quaternary ammonium chloride salt. The chemical reaction is as shown below:

H (CH3CH2)2NH + C CH3CH_ N HCI mon — reasons pour H ausenden op Diethyl amine CH2CH2 Diethylammonium chloride

(c)

Triethyl amine ((CH3CH2)3N) reacts with HCl to give Triethylammonium chloride. Tertiary amine group of triethyl amine is basic in nature and reacts with acidic HCl to form quaternary ammonium chloride salt. The chemical reaction is as shown below:

CH2CH3 (CH2CH2)2N + HCI CH,CHÚN®—H Triethyl amine CH2CH3 Triethylammonium chloride