Cumic acid
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| General | ||||||||||||||||
| Surname | Cumic acid | |||||||||||||||
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| Molecular formula | C 10 H 12 O 2 | |||||||||||||||
| Brief description |
triclinic plates |
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| properties | ||||||||||||||||
| Molar mass | 164.20 g mol −1 | |||||||||||||||
| Physical state |
firmly |
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| density |
1.162 g cm −3 (4 ° C) |
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| Melting point |
117.5 ° C |
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| solubility |
slightly soluble in water; very soluble in ethanol and diethyl ether; soluble in petroleum ether |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||||||||
Cumic acid ( 4-isopropylbenzoic acid ) is structurally derived from benzoic acid or cumene (isopropylbenzene) and belongs to the terpenoid group . Its name and structure are derived from cuminaldehyde , the biologically active component of the seed oil from cumin ( Cuminum cyminum ). Cumene is formed from cumic acid by decarboxylation .
See also
Individual evidence
- ↑ a b c d David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Physical Constants of Organic Compounds, pp. 3-314.
- ↑ a b Data sheet cuminic acid from Sigma-Aldrich , accessed on August 20, 2011 ( PDF ).
literature
- AW Hofmann: “Note on the behavior of cuminic acid in the animal organism”, in: Justus Liebigs Annalen der Chemie , Volume 74, Issue 3, 1850, pp. 342-345, doi : 10.1002 / jlac.18500740308 .
- F. Beilstein, A. Kupffer: “Ueber Cuminsäure”, in: Justus Liebigs Annalen der Chemie , Volume 170, Issue 3, 1873, pp. 301-304, doi : 10.1002 / jlac.18731700306 .
- Richard Meyer: "Oxydation of cuminic acid by over-manganese acid potassium", in: Reports of the German Chemical Society , Volume 11, Issue 2, July – December 1878, pp. 1283–1287, doi : 10.1002 / cber.18780110204 .
- Richard Meyer, Erwin Müller: “The synthesis of cuminic acid”, in: Reports of the German Chemical Society , Volume 15, Issue 2, July – December 1882, pp. 1903–1906, doi : 10.1002 / cber.188201502101 .