trans-3-Penten-2-one manufacturers
- trans-3-Penten-2-one
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- $1.00
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2019-09-02
- CAS:3102-33-8
- Min. Order: 1KG
- Purity: 85.0-99.8%
- Supply Ability: 200kg
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| | trans-3-Penten-2-one Basic information |
| Product Name: | trans-3-Penten-2-one | | Synonyms: | 4-methyl-3-buten-2-one;trans-3-Penten-2-one;3-PENTEN-2-ONE,(E)-;3-Penten-2-one, (3E)-;(E)-Pent-3-en-2-one - [P90534];(E)-3-Penten-2-one | | CAS: | 3102-33-8 | | MF: | C5H8O | | MW: | 84.12 | | EINECS: | | | Product Categories: | | | Mol File: | 3102-33-8.mol |  |
| | trans-3-Penten-2-one Chemical Properties |
| Melting point | -54.55°C | | Boiling point | 109.43°C (estimate) | | density | 0.8624 | | refractive index | 1.4350 | | storage temp. | Storage temp. 2-8°C | | solubility | sol water and all organic solvents | | Appearance | Light yellow to yellow Liquid | | LogP | 0.563 (est) |
| | trans-3-Penten-2-one Usage And Synthesis |
| Uses |
trans-3-Penten-2-one undergoes conjugate addition as in Michael and cuprate reactions; reagent for Robinson annulation and Diels-Alder reaction.
| | Preparation |
An excellent method of trans-3-Penten-2-one involves the Wittig reaction of Acetylmethylenetriphenylphosphorane and Acetaldehyde (2.5 mol equiv) in methylene chloride (reflux, 6h, 76% yield). Another good method13 proceeds via the Aluminum Chloride catalyzed addition of Acetyl Chloride to propene followed by dehydrochlorination.
| | Definition | ChEBI: (3E)-pent-3-en-2-one is a methyl propenyl ketone in which the double bond has (E)-configuration. It is a key odorant responsible for the chestnut-like aroma in green tea. It has a role as a flavouring agent and a plant metabolite. It is a methyl propenyl ketone and a volatile organic compound. | | storage |
Trans-3-Penten-2-one should be best stored in refrigerator; moderately toxic; lachrymator. This reagent should only be handled in a fume hood.
| | Purification Methods |
Fractional distillation.
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| | trans-3-Penten-2-one Preparation Products And Raw materials |
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