Alcohols Flashcards
Suffix for alcohols
-ol
Prefix for alcohols
Hydroxy-
Phenol
Hydroxy attached to a benzene ring
Ortho
Next to the -OH on benzene ring
Meta
One down from -OH on benzene ring
Para
Directly across from -OH on benzene ring
Why are phenols so acidic?
Possible resonance between the ring & the lp’s on the oxygen make the H extra acidic
What causes alcohols to have high boiling & melting points?
Intermolecular hydrogen bonding
What does hydrogen bonding cause?
Increased melting points, boiling points, and solubility in water
What can cause an increase in boiling point?
Increased amount of -OH groups
Hydrogen bonding atoms
NOF
pKa of phenol
Around 10
Electron-withdrawing group on phenols?
Increase acidity
Electron-donating groups on phenols?
Decrease acidity
More alkyl groups creates?
Less acidity (donate electrons) & stabilizes positive charge stability, but destabilizes negative charge stability
What causes stability in carbocations?
More substitution
What can primary alcohols be oxidized to ?
Aldehydes
What can secondary alcohols be oxidized to?
Ketones
What must primary alcohols be oxidized by to create aldehyde?
PCC
Can tertiary alchohols be oxidized?
No
What will oxidize a primary alcohol to a carboxylic acid?
Chromium
What is Jones oxidation
CrO3, H2SO4 and acetone
What will Jones oxidation do to primary & secondary alcohols
Primary- carboxylic acids
Secondary- ketones
Mesylate
Contains -SO3CH3 from methanesulfonic acid
Better leaving group than hydroxyl
Protecting group