Helional

"Helional" is also a brand of the pharmaceutical drug phenobarbital.
Helional
Names
IUPAC name
3-(1,3-Benzodioxol-5-yl)-2-methylpropanal
Other names
2-Methyl-3-(3,4-methylenedioxyphenyl)propanal;
2-piperonylpropanal
Helional
Ocean propanal
Identifiers
1205-17-0
3D model (Jmol) Interactive image
ChemSpider 58337
ECHA InfoCard 100.013.528
PubChem 64805
Properties
C11H12O3
Molar mass 192.21 g·mol−1
Appearance clear colorless liquid
Odor floral, herbaceous
Density 1.162 g/ml
Boiling point 282°C
Hazards
Safety data sheet [1]
GHS pictograms
GHS signal word Warning
H315, H319, H335
P261, P305+351+338
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Helional (from heliotropin, from which is it commonly derived) is a chemical compound used as a perfume in soap and laundry detergent. Chemically it is an aldehyde with a dihydrocinnamaldehyde motif; a structural element which is present in a number of other important commercial fragrances.

Synthesis

Several synthetic routes exist but the most common is a crossed-aldol condensation between piperonal (heliotropin) and propanal followed by selective hydrogenation of the intermediate alkene. This produces a racemic product.

See also

References


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