Propionic Acid → 3,7-Dimethylocta-2,6-Dienal
Reaction equation
[CH3:1][C:2]([CH3:6])=[CH:3][CH:4]=[O:5].[CH3:7][C:8]([CH3:12])=[CH:9][CH2:10]O.C(O)(=O)CC>O>[CH3:7][C:8](=[CH:9][CH2:10][CH2:1][C:2](=[CH:3][CH:4]=[O:5])[CH3:6])[CH3:12]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Conditions
- Temperature
- 130 °C
Procedure
A mixture of 100 parts of 3,3-dimethylacrolein, 200 parts of prenol and 150 parts of propionic acid is heated for three hours at 130° C., the water formed being distilled out azeotropically. The reaction product is worked up. 24 parts of citral is obtained. This is equivalent to yield of 51% of theory at a conversion of 26% (based on 3,3-dimethylacrolein).
Workup
- distillationbeing distilled out azeotropically
Sources & evidence
- ORD record
- ord-b781db8e381a4ddeb7356b3389df79e6
- Source dataset
- uspto-grants-1977_05
- Patent number
- US04021411
Reaction notes
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