Senecioaldehyde

Structural formula
General
Surname	Senecioaldehyde
other names	3-methyl-2-butenal 3-methyl crotonaldehyde 3,3-dimethylacrolein Prenal
Molecular formula	C 5 H 8 O
External identifiers / databases
CAS number 107-86-8 EC number 203-527-6 ECHA InfoCard 100.003.207 PubChem 61020 Wikidata Q27098245
properties
Molar mass	84.12 g mol −1
Physical state	liquid
density	0.872 g ml −1 (25 ° C)
boiling point	133-135 ° C
solubility	110 g l −1 (20 ° C)
Refractive index	1.462 (20 ° C)
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 226-302-314-317-331 P: 261-280-305 + 351 + 338-310
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Senecioaldehyde ( 3-methylcrotonaldehyde ) is an organic compound with the empirical formula C ₅ H ₈ O from the group of aldehydes with an additional C = C double bond , more precisely the alkenals . It is also one of the α, β-unsaturated carbonyl compounds.

It is made from isoprenol by air oxidation on a silver catalyst.

Individual evidence

1. ↑ ^{a b c d e f} data sheet 3-Methylcrotonaldehyde from Sigma-Aldrich , accessed on July 28, 2019 ( PDF ).
2. ↑ K. Hüsnü, Can Başer, Gerhard Buchbauer: Handbook of Essential Oils: Science, Technology, and Applications , 2nd edition, Boca Raton, 2016, ISBN 978-1-4665-9046-5 , p. 192 ( limited preview in Google Book Search).
3. ↑ Patent application WO2008037693 : Continuous process for the production of citral. Registered on September 26, 2006 , published on April 3, 2008 , applicant: BASF SE, inventor: Günter Wegner, Gerd Kaibel, Jörg Therre, Werner Aquila and Hartwig Fuchs. ‌