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| | 1-PENTANOL, 3-METHYL-5-PHENYL Basic information |
| Product Name: | 1-PENTANOL, 3-METHYL-5-PHENYL | | Synonyms: | 1-PENTANOL, 3-METHYL-5-PHENYL;.gamma.-methyl-Benzenepentanol;2-methyl-Benzenepentanol;Benzenepentanol,.gamma.-methyl-;gamma-methyl-benzenepentano;PHENYLISOHEXANOL;2-METHYL-BENZENEPENTANOL,99+%;γ-Methylbenzene-1-pentanol | | CAS: | 55066-48-3 | | MF: | C12H18O | | MW: | 178.28 | | EINECS: | 259-461-3 | | Product Categories: | | | Mol File: | 55066-48-3.mol |  |
| | 1-PENTANOL, 3-METHYL-5-PHENYL Chemical Properties |
| Boiling point | 141-143 °C(Press: 11 Torr) | | density | 0.957±0.06 g/cm3(Predicted) | | vapor pressure | 0.04Pa at 20℃ | | pka | 15.11±0.10(Predicted) | | Odor | at 100.00 %. fresh floral rose absolute geranium green muguet lily honey tropical | | Odor Type | floral | | Water Solubility | 390mg/L at 20℃ | | Cosmetics Ingredients Functions | FRAGRANCE | | LogP | 2.7 at 30℃ | | EPA Substance Registry System | Benzenepentanol, .gamma.-methyl- (55066-48-3) |
| Hazard Codes | Xi | | Risk Statements | 36 | | Safety Statements | 26 | | TSCA | TSCA listed |
| | 1-PENTANOL, 3-METHYL-5-PHENYL Usage And Synthesis |
| Chemical Properties | 1-PENTANOL, 3-METHYL-5-PHENYL is a colorless liquid, bp0.013 kPa 86–91 °C, d20
20 0.960–0.964,
n20
D 1.511–1.514, with a long-lasting diffusive, fresh, floral, rose odor.The alcohol
is prepared by hydrogenation of tetrahydro-4-methylene-5-phenylpyran, which is
obtained by cyclocondensation of benzaldehydewith 3-methyl-3-buten-l-ol in the
presence of p-toluenesulfonic acid.
It can be used in all perfume types for a wide range of products, for example,
soaps, detergents, and body care products. | | Flammability and Explosibility | Non flammable | | Trade name | Phenoxanol® (IFF), Phenylhexanol (Firmenich), Mefrosol
(Givaudan). | | Synthesis | A. Benzaldehyde, tert-butylbenzene, iron sulfate, and isopentenol react at 150-155C with water removal to yield phenyl dihydropyran.
B. The oil phase is distilled under reduced pressure to isolate phenyl dihydropyran and recover tert-butylbenzene.
C. Phenyl dihydropyran is partially hydrogenated using Raney Nickel at 130C and 0.6-1 MPa.
D. The filtrate is further hydrogenated to completion using Pd/C at 130-140C and 0.7-1 MPa.
E. The hydrogenated material is worked up and distilled under reduced pressure to obtain the product. |
| | 1-PENTANOL, 3-METHYL-5-PHENYL Preparation Products And Raw materials |
| Raw materials | 2H-Pyran, 3,4-dihydro-2-phenyl--->2-Pentenoic acid, 3-methyl-5-phenyl-, ethyl ester, (2Z)--->2-Pentenoic acid, 3-methyl-5-phenyl-, ethyl ester, (2E)--->1-Penten-3-one, 5-phenyl--->2-Penten-1-ol, 3-methyl-5-phenyl-, (2E)--->4-METHYL-2-PHENYL-3,6-DIHYDROPYRAN-->4-Phenyl-2-butanol-->Isopropyl alcohol |
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