Topic 13 Esters and Thioesters Flashcards
1
Q
When are esters formed?
A
Reaction between an alcohol and carboxylic acid
2
Q
Order in terms of polarity (from high to low):
Esters
Alcohols
Ethers
A
Alcohols > Esters > Ethers
3
Q
Why do esters have low melting and boiling points?
A
Flexibility and low polarity
4
Q
Why do thioesters have poor resonance?
A
C and S are not same row elements
5
Q
Why does nature use thioesters rather than esters?
A
- they are effective acylating agents
2. They are good alkylating agents
6
Q
Draw a scheme for the reaction of butanoic acid (butyric acid) with 2- propanol in the presence of an acid catalyst. Your scheme should include curly arrows to show the movement of electrons. Using annotations, explain each step. Briefly comment on the stability of the products produced (PASS)
A
