Chapter 6,7- aldehydes and ketones Flashcards
1
Q
Boiling point
A
Alcohol> aldehydes and ketones> alkanes
2
Q
Reactivity
A
Aldehydes> ketones
3
Q
Acetal and ketal
A
From aldehydes and ketones respectively and have 2 OR groups
- from aldehyde/ketone + excess alcohol or else get hemiacetal or hemiketal
4
Q
Imines and enamine
A
Imine: RC=NHR’
Enamine is tautomerization of it with C=C NH
5
Q
NaBH4
A
Reducing agent
6
Q
Alpha hydrogens
A
Most acidic
-aldehyde> ketone
7
Q
Themordynamic vs kinetic stability
A
Thermodynamic: between O and R grouo
Kinetic: not between
8
Q
Aldol
A
Aldehyde + alcohol functional groups
- formation: Cinitially x 2
- react with strong base (ex:LDA) then strong acid
Reverse: add base