2-Methyl-2-butenal has a penetrating, powerful green ethereal
odor. May be prepared by condensation of acetaldehyde and propionaldehyde.
trans-2-Methyl-2-butenal is a clear colorless to yellow liquid. B.P. 135℃.
Sp.Gr. 0.87. Almost insoluble in water, soluble in alcohol and oils. Powerful and very diffusive, penetrating
“gassy” odor of green-ethereal character.
Very poor tenacity.
Tiglic aldehyde was used in the concise total synthesis of 7-demethylpiericidin A1. It was used as starting reagent during the synthesis of:
- alkyl-branched tetraene hydrocarbons, pheromone component for dried fruit beetle
- E,E-2,4-dimethyl-2,4-hexa dienal, volatile constituents of the defensive secretions of Leiobunum nigripalpi
- 4-methyl-2,4-hexadiene-1-ol
trans-2-Methyl-2-butenal is one of the major volatile constituents of coriander and olive oil.
