Download Topic: Function Group #4

Topic: Function Group #4-Ketones
Do Now: In terms of IMF, explain the difference in
boiling point
O
=
• General Format:
RCR'
R and R' may or may not be the same
(but have to be carbons/carbon chains)
Carbonyl group:
=
O
C
located within C chain
Properties
• Carboxyl group makes ketone molecules
polar = soluble in water
• Dipole-Dipole interactions
– Boiling point:
• higher than alkanes (same # C’s)
• lower than alcohols (same # C’s)
Have you ever smelled a ketone?!
Camphor
Naming Ketones
• Must use number to indicate location of
carboxyl group – use lowest possible number
• Take corresponding alkane name:
– Drop -e & add -one
2-propanone
Common name = acetone
2-pentanone