15. Amines

Question 1

amines are derivates of what

Answer 1

ammonia where alkyl or aryl groups are replaced with one or more protons

Question 2

how are amines classified and based on what

Answer 2

primary, secondary, tertiary

based on number of groups attached to nitrogen atom

Question 3

the nitrogen atom of amines are ___ hybridised

Answer 3

sp3

Question 4

the nitrogen atom of amines are ___ hybridised

what does this mean for e-

Answer 4

sp3

lone pair of e- occupying the hybridized orbitals

Question 5

which have the highest and lowest boiling points of the primary, secondary and tertiary amines

why

Answer 5

primary = highest due to higher capacity to form hydrogen bonds

tertiary = lowest

Question 6

what is important of amines

Answer 6

basic

Question 7

how are amines prepared via reductive amination

Answer 7

ketones converted to imines when treated with ammonia in acidic condition (NH3/H+)

in presence of reducing agent (H2) and Pt then the imine is reduced to form an amine

Question 8

how are amides formed from amines

Answer 8

primary and secondary amines react with carboxylic acids to form amides