WM 2- Identifying The Active Chemical In Willow Bark Flashcards
1
Q
What is the structure of phenol?
A
OH group is attached to benzene ring
2
Q
Give order of increasing acidity of phenols, alcohols, water and carboxylic acids
A
Alcohols
3
Q
How can phenols and alcohols be distinguished from each other?
A
Add iron(III)chloride, - Fe3+ forms complex with -C=C-OH in phenols, form purple complex
4
Q
How do you esterification phenols?
A
Add acid anhydride, to form ester and carboxylic acid
5
Q
What are the 2 ways to esterify salicylic acid, and what are the products?
A
- Esterification of phenol group using acid anhydride, to give aspirin
- Esterification of carboxylic acid group using alcohol, to give Oil of Wintergreen
6
Q
How is aspirin made more soluble?
A
React with NaOH
