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HomeProduct name listNorbornene

Norbornene

Synonym(s):2-Norbornene;Norbornylene

  • CAS NO.:498-66-8
  • Empirical Formula: C7H10
  • Molecular Weight: 94.15
  • MDL number: MFCD00082304
  • EINECS: 207-866-0
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-31 13:32:20
Norbornene Structural

What is Norbornene?

Chemical properties

white crystalline mass

The Uses of Norbornene

Norbornene is used as a monomer and as an intermediate in organic synthesis. It is also used to prepare pharmaceutical intermediates and specialty fragrances. It reacts with ethylene to get cyclic olefin copolymer. Further, it is used in transition metal catalysis to affect migration of electrophilic transition metals. It acts as a monomer in ring-opening metathesis polymerizations with the Grubbs' catalyst. Its polymer, polynorbornene is used in the rubber industry for anti-vibration, anti-impact in personal protective equipment and grip improvement in toy tires, racing tires and transmission system.

Definition

ChEBI: Norbornene is a bridged compound that is cyclohexane with a methylene bridge between carbons 1 and 4 and a double bond at position 2. It is a bridged compound, a carbobicyclic compound and a cyclic olefin.

General Description

The vinylic polymerization of bicyclo[2.2.1]hept-2-ene (norbornene) with Co(II) compounds and the metallocene [η5-(C5Me5)Co-η2-Cl]2, in chlorobenzene activated with methylaluminoxane (MAO) has been reported. Co(II) catalyzed polymerization of bicyclo[2.2.1]hept-2-ene in the presence of ethene has been reported.

Flammability and Explosibility

Non flammable

Purification Methods

Reflux it over Na, and distil it [Gilliom & Grubbs J Am Chem Soc 108 733 1986]. It has also been purified by sublimation in vacuo onto an ice-cold finger. [Woon et al. J Am Chem Soc 108 7990 1986, Beilstein 5 IV 394.]

Properties of Norbornene

Melting point: 44-46 °C (lit.)
Boiling point: 96 °C (lit.)
Density  0.955
vapor pressure  30.06kPa at 59℃
refractive index  1.4770 (estimate)
Flash point: 5 °F
storage temp.  Sealed in dry,Room Temperature
solubility  Chloroform (Soluble), Ethyl Acetate (Slightly), Methanol (Slightly)
form  Crystalline Mass
color  White
Specific Gravity 0.85
Water Solubility  Soluble in ethanol, ether and most organic solvents. Insoluble in water.
Hydrolytic Sensitivity 4: no reaction with water under neutral conditions
BRN  1098544
Exposure limits ACGIH: TWA 20 ppm
OSHA: Ceiling 300 ppm; TWA 200 ppm
NIOSH: IDLH 500 ppm; TWA 100 ppm(375 mg/m3); STEL 150 ppm(560 mg/m3)
CAS DataBase Reference 498-66-8(CAS DataBase Reference)
EPA Substance Registry System Bicyclo[2.2.1]hept-2-ene (498-66-8)

Safety information for Norbornene

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H228:Flammable solids
H319:Serious eye damage/eye irritation
H361:Reproductive toxicity
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P202:Do not handle until all safety precautions have been read and understood.
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240:Ground/bond container and receiving equipment.
P273:Avoid release to the environment.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313:IF exposed or concerned: Get medical advice/attention.

Computed Descriptors for Norbornene

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