3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-o
Ebanol
CAS: 67801-20-1
Molecular Formula: C14H24O
3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-o - Names and Identifiers
3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-o - Physico-chemical Properties
| Molecular Formula | C14H24O |
| Molar Mass | 208.34 |
| Density | 0.938 |
| Boling Point | 287°C |
| Flash Point | 103°C |
| JECFA Number | 2220 |
| Water Solubility | 34mg/L at 20℃ |
| Vapor Presure | 0.89Pa at 25℃ |
| pKa | 14.96±0.20(Predicted) |
3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-o - References
| FEMA | 4775 | 3-METHYL-5-(2,2,3-TRIMETHYLCYCLOPENT-3-EN-1-YL)PENT-4-EN-2-OL |
| LogP | 4.2 |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| Application | Ebonitol (3-methyl-5-(2,2, 3-trimethyl-3-cyclopenten-1-yl) pent-4-ene-2-ol, also known as methylcyclopentanilenol) is a fragrance with a very full and strong natural sandalwood aroma, ebony alcohol can bring rich and elegant feeling and sandalwood aroma to the wood flavor formula. it is suitable for various types of formulas and lasts for a long time. it is used in high-grade perfume, beauty care, soap, washing care and household goods. Its market demand is large and has great development potential. |
| preparation | 20g of zinc bromide is put into 1500g of toluene, 650g of sandalwood ketone is added dropwise to the reaction system, so that the temperature of the reaction system is maintained at 53~110 ℃. after the dropout is completed, the reaction is continued for 5 minutes, sampling is taken, the content of sandalwood ketone is analyzed by liquid chromatography is 0.13%, and the first step of reaction is completed. After the step -1 reaction system is vacuum distilled to recover toluene, 800g of sec-butanol and 80g of sec-butanol aluminum are input, the reaction temperature is controlled at 100~125 ℃, the reflux reaction is carried out in stages: 0-2h, the reaction temperature is controlled at 100~105 ℃, the end temperature of the reflux tube is controlled at ≦ 78 ℃, and butanone is recovered while reacting; At 2h-3h, the reaction temperature is controlled at 105~115 ℃, the temperature at the end of the return tube is controlled at 81~95 ℃, and sec-butanol is recovered while the reaction is carried out. At 3h-5h, the reaction temperature is controlled at 115~125 ℃, the temperature at the end of the return tube is controlled> 98 ℃, and sec-butanol is recovered while the reaction is carried out. Sampling analysis in the third stage of the reaction shows that the isomeric sandalwood ketone content is 1.76%, and the reaction is completed. The reaction product was pickled and alkaline washed to obtain 673g of crude ebony alcohol with a mass fraction of 81.05 and a total yield of 83.51. |
Last Update：2024-04-09 15:17:27
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Spot supply
Product Name: 4-Penten-2-ol Visit Supplier Webpage Request for quotationCAS: 67801-20-1
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185
Wechat: chinaskyrun
View History
3-methyl-5-(2,2,3-trimethyl-3-cyclopenten-1-yl)-4-penten-2-o
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