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Product Name:3-Methyl-2-penten-4-yn-1-ol
CAS:105-29-3
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| | 3-Methyl-2-penten-4-yn-1-ol Basic information |
| Product Name: | 3-Methyl-2-penten-4-yn-1-ol | | Synonyms: | 3-methylpent-2-en-4-yn-1-ol;1-Hydroxy-3-methyl-2-penten-4-yne;3-methyl-2-penten-4-yn-1-o;3-Methylpenten-2-in-4-ol-1;2-Penten-4-yn-1-ol,3-methyl-;3-Methyl-2-penten-4-yn-1-ol;1-Pentol | | CAS: | 105-29-3 | | MF: | C6H8O | | MW: | 96.13 | | EINECS: | 203-284-6 | | Product Categories: | | | Mol File: | 105-29-3.mol |  |
| | 3-Methyl-2-penten-4-yn-1-ol Chemical Properties |
| Melting point | 25°C | | Boiling point | 144.66°C (rough estimate) | | density | 0.9253 (estimate) | | refractive index | 1.4460 (estimate) | | pka | 14.22±0.10(Predicted) | | EPA Substance Registry System | 2-Penten-4-yn-1-ol, 3-methyl- (105-29-3) |
| RIDADR | 2705 | | HazardClass | 8 | | PackingGroup | II |
| | 3-Methyl-2-penten-4-yn-1-ol Usage And Synthesis |
| 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. |
| | 3-Methyl-2-penten-4-yn-1-ol Preparation Products And Raw materials |
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