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Grade 12th passOrganic Chemistry

Which of the following reactions produce amines
a. CH3CH2CONH2 upon LiAH4
b. CH3CH2CONH2 upon Br2/NaOH
c. CH3CH(NH2)COOH upon Ba(OH)2
d. CH3COCH3 upon NH3

Question image for Which of the following reactions produce amines a

Bindu

6 Years agoGrade 12th pass

2 Answers

Arun

6 Years ago

CH

3

CH2CONH2

A

CH

3

−CH

2

−NH

2

B

CH

3

−CH

2

−OH

In the above sequence A & B respectively are Br

2

/KOH and HNO

2

The first step is Hoffmann bromamide degradation reaction in which an amide (propanamide) is converted to an amine (ethylamine) containing one carbon atom less. The reagent A is bromine in presence of KOH. In the second step, aliphatic primary amine (ethyl amine) reacts with nitrous acid (reagent B) to form aliphatic primary alcohol (ethyl alcohol).

Vikas TU

6 Years ago

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