| Identification | Back Directory | [Name]
3-Methyl-2-penten-4-yn-1-ol | [CAS]
105-29-3 | [Synonyms]
1-Pentol
3-methyl-2-penten-4-yn-1-o
3-Methylpenten-2-in-4-ol-1
3-methylpent-2-en-4-yn-1-ol
3-Methyl-2-penten-4-yn-1-ol
2-Penten-4-yn-1-ol,3-methyl-
1-Hydroxy-3-methyl-2-penten-4-yne | [EINECS(EC#)]
203-284-6 | [Molecular Formula]
C6H8O | [MDL Number]
MFCD00042661 | [MOL File]
105-29-3.mol | [Molecular Weight]
96.13 |
| Hazard Information | Back Directory | [Description]
3-Methyl-2-penten-4-yn-1-ol, also known as C6 alcohol or 3-methylpent-2-en-4-yn-1-ol,
is a derivative of methyl vinyl ketone and acetylene. (Z)-3-Methyl-2-penten-4-yn-1-ol is a pharmaceutical intermediate for the production
of vitamin A. Its stereoisomer, (Z)-3-methyl-2-penten-4-yn-1-ol, is also a useful intermediate for the manufacture of astaxanthin, zeaxanthin and further carotenoids. | [Chemical Properties]
3-Methyl-2-penten-4-yn-1-ol has cis and trans isomers. E type: oily liquid, boiling point 165-167℃, relative density 0.922, refractive index 1.4850, flash point 65℃; Z type: oily liquid, boiling point 89-92℃/4kPa, relative density 0.897, refractive index 1.4930, flash point 75 °C. Both isomers are easy to polymerize, and they will explode when heated to above 120°C in a sealed tube. | [Uses]
Used as intermediate of vitamin A acetate. | [Synthesis]
3-Methyl-2-penten-4-yn-1-ol is synthesized by allyl rearrangement fo methyl vinyl ethynyl methanol at 80°C under moderate acid. |
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