Chemistry:Ethyl decadienoate
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| Names | |
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| Preferred IUPAC name
Ethyl (2E,4Z)-deca-2,4-dienoate | |
| Other names
Ethyl (2E,4Z)-2,4-decadienoate
Pear ester Ethyl 2-trans-4-cis-decadienoate | |
| Identifiers | |
3D model (JSmol)
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| ChEBI | |
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PubChem CID
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| Properties | |
| C12H20O2 | |
| Molar mass | 196.290 g·mol−1 |
| Appearance | Colorless liquid[1] |
| Boiling point | 70–72 °C (158–162 °F; 343–345 K) |
| 8.588 mg/L (est.)[5] | |
| Hazards | |
| Flash point | 113 °C (235 °F)[2] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Ethyl decadienoate, also known as pear ester, is an organic chemical compound used in flavors and perfumery for its pear-like taste and odor.
Occurrence and preparation
Ethyl decadienoate is found in apples, Bartlett pears, Concord grapes, beer, pear brandy and quince.[1]
It can also be prepared synthetically from 1-octyn-3-ol[4] or from ethyl propiolate.[3]
Uses
Ethyl decadienoate is used in natural flavors and fragrances for its intense fruity flavor. In the United States, as a food additive it is listed as generally recognized as safe (GRAS).[6]
References
- ↑ 1.0 1.1 Michael Zviely (August 23, 2011). "Pear Ester: Ethyl (E,Z)-2,4-decadienoate". Perfumer & Flavorist. http://www.perfumerflavorist.com/fragrance/rawmaterials/natural/128267048.html.
- ↑ 2.0 2.1 "Ethyl 2-trans-4-cis-decadienoate". Sigma-Aldrich. http://www.sigmaaldrich.com/catalog/product/ALDRICH/W314811?lang=en.
- ↑ 3.0 3.1 Alexakis, A.; Cahiez, G.; Normant, J.F. (1980). "Vinyl-copper derivatives—XI". Tetrahedron 36 (13): 1961. doi:10.1016/0040-4020(80)80209-2.
- ↑ 4.0 4.1 S. Tsuboi, T. Masuda, S. Mimura, and A. Takeda (1988). "Ethyl (E,Z)-2,4-Decadienoate". Organic Syntheses 66: 22. http://www.orgsyn.org/demo.aspx?prep=cv8p0251.; Collective Volume, 8, pp. 251
- ↑ "Ethyl (E,Z)-2,4-decadienoate". Good Scents Company. http://www.thegoodscentscompany.com/data/rw1029341.html.
- ↑ "ETHYL DECADIENOATE, NATURAL". natural-advantage.net. http://www.natural-advantage.net/Et-Deca.htm.
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