Description
Product Name: Allene Propadiene C3H4 Gas – Hydrocarbon – Special Hydrocarbon
CAS：74-99-7
Purity: 99 %
Product specifications: 4L/8L/10L/40L/47L/50L
Product form: Allene Propadiene C3H4 Gas
Main use: Allene Propadiene is used in the synthesis of chemicals and special materials.
Availability : In Stock
Certificate of Analysis
| Component | Unit | Specification | |
| Purity | % | ≥99 | |
| Propylene | ppm | / | |
| Propyne | ppm | / | |
| 3-methy–butene | ppm | / | |
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Applications and Industries
Allene (C3H4), also known as propadiene, is a colorless gas primarily used in specialty gas mixtures, organic synthesis, and instrument calibration. It is a relatively simple molecule with two adjacent carbon double bonds and is sometimes used as a fuel in specialized welding. Allene is a byproduct of petroleum refining and is often used in organic synthesis as a substitute for allylmetal reagents, particularly in enantioselective ketone allylation reactions.
1. Specialty Gas Mixtures: Allene is used in the preparation of specialty gas mixtures, which are used for various applications including calibration and research.
2. Organic Synthesis:
- Allene can be used in place of allylmetal reagents, which are commonly used in synthetic chemistry, particularly in enantioselective ketone allylation.
- This process involves using allene in combination with hydrosilanes, catalyzed by copper and ligands, and it can tolerate a wide range of functional groups.
- The reaction is efficient and doesn’t require specialized equipment or pressurization, making it industrially relevant.
3. Instrument Calibration: Allene is also used for calibrating analytical instruments.
