3-Butyl-1-methylcyclopenta-1,3-diene
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Product Description
3-Butyl-1-methylcyclopenta-1,3-diene is a cyclopentadiene derivative features a five-membered ring with conjugated double bonds at positions 1-2 and 3-4, a methyl group at position 1, and a butyl group at position 3. It is expected to exhibit typical reactivity of cyclopentadiene compounds, such as Diels-Alder reactions and polymerization reactions. 3-Butyl-1-methylcyclopenta-1,3-diene can be used as an intermediate in organic synthesis to construct complex molecular frameworks or as a ligand in metal-catalyzed reactions. It may also have applications in materials science for polymer modification or the development of functional materials.
Synthesis Methods
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Alkylation: Cyclopentadiene can be reacted with an alkyl halide (e.g., butyl bromide) under alkaline conditions.
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Cycloaddition: Utilizes the [4+2] cycloaddition reaction of cyclopentadiene with alkenes or alkynes to construct ring systems.
Uses
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Organic Synthesis Intermediate: Used to construct complex molecular frameworks or as a ligand in metal-catalyzed reactions.
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Materials Science: Can be used for polymer modification or the development of functional materials.
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Organometallic Chemistry: Serves as a precursor for cyclopentadienyl ligands in transition metal chemistry, such as in the preparation of metallocene catalysts.
Molecular Structure
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Molecular Formula: C10H16
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SMILES: CCCCC1=CCC(=C1)C
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InChI Key: OSRFUMBNIRJIKU-UHFFFAOYSA-N
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IUPAC Name: 3-Butyl-1-methylcyclopenta-1,3-diene (alternative name: 1-Butyl-3-methylcyclopenta-1,3-diene)
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Structure: The compound features a five-membered ring with conjugated double bonds at positions 1-2 and 3-4, a methyl group at position 1, and a butyl group at position 3.
Physical Properties
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Molecular Weight: 136.23 g/mol
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Physical State: Likely a colorless liquid at room temperature.
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Boiling Point: Between 40-150°C (estimated based on similar compounds).
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Density: Approximately 0.7-0.9 g/cm³ (less than water).
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Solubility: Insoluble in water, soluble in organic solvents.
Chemical Reactivity
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Reactivity: Exhibits typical reactivity of cyclopentadiene compounds, such as Diels-Alder reactions and polymerization reactions.
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Stability: May dimerize at room temperature to form dicyclopentadiene structures, but derivatives with substituents may be more stable.
Safety Information
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Hazards: Presumed to be a flammable liquid (flash point may be below 60°C). Avoid contact with oxidants and ignition sources.
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Storage: Recommended to be sealed, stored in a cool, well-ventilated area, away from heat sources and incompatible materials.
Regulatory Information
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CAS Number: 184687-62-5
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EPA TSCA Status: Active under the Toxic Substances Control Act (TSCA).