4-Isopropenyl-1-methylcyclohexene | CAS No. 138-86-3

Q: What are the physical and chemical properties of 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3)?

4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) has a crystalline form at room temperature. It has a molecular weight of approximately 154.26 g/mol and a high vapor pressure, indicating good volatility. The compound is poorly soluble in water but soluble in organic solvents like ethanol and acetone. It is a cyclic ketone with a reactive double bond and readily undergoes addition reactions with nucleophiles.

Q: How is 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) typically synthesized?

4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) can be synthesized via a Wittig reaction where a phosphonium ylide reacts with an alkylidenephosphonium salt. The reaction is typically conducted in an anhydrous organic solvent at low temperatures, with good yield and selectivity. The use of a suitable catalyst can enhance the reaction efficiency.

Q: What industries use 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3)?

4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) is used in the pharmaceutical industry for the synthesis of certain drugs due to its chemical reactivity. It is also applied in polymer manufacturing for the preparation of specific monomers. Additionally, it can be used in semiconductor fabrication processes and as a component in sensor technology for detecting specific chemical species.

Q: What precautions should be taken when handling 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3)?

When handling 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3), it is important to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a fume hood due to its volatility and potential toxicity. In case of a spill, avoid inhalation and handle with care using appropriate cleaning agents. Refer to the Safety Data Sheet (SDS) for detailed emergency procedures and storage guidelines.

4-Isopropenyl-1-methylcyclohexene

Basic Information

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CAS Number

138-86-3

Molecular Formula

C10H16

Molecular Weight

136.24 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Physical State

Oil

Melting Point

-96°C

Boiling Point

178°C

Water Solubility

<1 g/100mL

Solubility

Chloroform; Ethyl Acetate

Refractive Index

n20/D 1.473(lit.)

Vapor Pressure

1 mmHg ( 20 °C)

SMILES

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CC1=CCC(CC1)C(=C)C

InChI

InChI=1S/C10H16/c1-8(2)10-6-4-9(3)5-7-10/h4,10H,1,5-7H2,2-3H3

InChIKey

XMGQYMWWDOXHJM-UHFFFAOYSA-N

LogP

3.308900000000002

Topological Polar Surface Area

0.0 Å²

Hydrogen Bond Donor/Acceptor

0 / 0

Complexity

163

Safety Information

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GHS Hazard Pictograms

H226

H315

H317

H410

Hazard Statement

H226 Flammable liquid and vapor
Flammable liquids

H315 Causes skin irritation
Skin corrosion/irritation

H317 May cause an allergic skin reaction
Sensitization, Skin

H410 Very toxic to aquatic life with long lasting effects
Hazardous to the aquatic environment, long-term hazard

Hazard Class

Class 3 Class 3

Storage Conditions

2-8℃

Stability

Stable. Flammable. Incompatible with strong oxidizing agents.

Explosive Limit

0.7-6.1%, 150°F

Synonyms & References

English

dipentene
Limonene
Cinene
1-Methyl-4-(1-methylethenyl)cyclohexene
Cyclohexene, 1-methyl-4-(1-methylethenyl)-
(+/-)-Limonene
(±)-p-Mentha-1,8-diene
Ciene
Cinen
Depanol
Dipanol
dycom
Eulimen
Nesol
p-menth-1,8-diene
p-mentha-1,8-diene
Unitene
4-(1-Methylethenyl)-1-methyl-cyclohexene
4-Isopropenyl-1-methyl-1-cyclohexene
Cajeputene
Cyclil decene
Terpodiene
C06078
DL-Limonene
Dipentene
p-Mentha-1,8-diene
Cajeputen,Cajeputene,Cinen,DL-Limonene,Dipenten,Dipentene,Eulimen,Flavor orange,Florasolv DPE,Goldfl...
1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene

MDL Number

MFCD00062992

Customs Code

2942000000

FAQ

What are the physical and chemical properties of 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3)?

4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) has a crystalline form at room temperature. It has a molecular weight of approximately 154.26 g/mol and a high vapor pressure, indicating good volatility. The compound is poorly soluble in water but soluble in organic solvents like ethanol and acetone. It is a cyclic ketone with a reactive double bond and readily undergoes addition reactions with nucleophiles.

How is 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) typically synthesized?

4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) can be synthesized via a Wittig reaction where a phosphonium ylide reacts with an alkylidenephosphonium salt. The reaction is typically conducted in an anhydrous organic solvent at low temperatures, with good yield and selectivity. The use of a suitable catalyst can enhance the reaction efficiency.

What industries use 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3)?

4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3) is used in the pharmaceutical industry for the synthesis of certain drugs due to its chemical reactivity. It is also applied in polymer manufacturing for the preparation of specific monomers. Additionally, it can be used in semiconductor fabrication processes and as a component in sensor technology for detecting specific chemical species.

What precautions should be taken when handling 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3)?

When handling 4-Isopropenyl-1-methylcyclohexene (CAS: 138-86-3), it is important to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a fume hood due to its volatility and potential toxicity. In case of a spill, avoid inhalation and handle with care using appropriate cleaning agents. Refer to the Safety Data Sheet (SDS) for detailed emergency procedures and storage guidelines.