Ch 19 - Carboxylic Acids & Acidity of OH Bond Flashcards
0
Q
3 ways to make a carboxylic acid:
2) oxidation of alkyl benzenes. Reagent?
A
KMnO4
1
Q
3 ways to make a carboxylic acid:
1) oxidation of primary alcohols. reagent?
A
Cr6+ reagents:
• Na2Cr2O7
✳•CrO3/H2SO4, H2O
2
Q
3 ways to make a carboxylic acid:
3) Oxidative cleavage of alkynes. Reagent?
A
Terminal & Internal alkynes: O3/H2O
Internal: two carboxylic acids
Terminal: one carboxylic acid
3
Q
What do carboxylic acids act as?
A
- BL acids (H+ donors to BL base w/conjugate acid of higher pKa)
- become carboxylate anions (res stabilized)
4
Q
What do EW groups do to carboxylic & benzoic acids?
A
Make it more acidic (by stabilizing conjugate base)
5
Q
What do ED groups do to carboxylic & benzoic acids?
A
Make it less acidic (by destabilizing conjugate base)
6
Q
Other factors that make carboxylic acids stronger acids?
A
- larger # of EN subs
- sub is more EN
- EW group closer to carboxylic acids