Reaction Summary
Reagents
- Acidified potassium dichromate(VI),
/ dilute
Conditions
- Heat and distil immediately
Catalyst
- None
Chemical Equation
Equation
By-Products
Observations
Observations
- Orange solution turns green (
➔ )
⚠️ 9701 Exam Notes / Pitfalls
Warning
- Distil to stop at the aldehyde; reflux would give the unsaturated carboxylic acid.
- Dichromate does not attack the C=C; avoid hot conc.
(cleaves C=C).