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HomeProduct name list1,5-CYCLOOCTADIENE

1,5-CYCLOOCTADIENE

Synonym(s):COD

  • CAS NO.:1552-12-1
  • Empirical Formula: C8H12
  • Molecular Weight: 108.18
  • MDL number: MFCD00001752
  • EINECS: 216-291-4
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-08-14 17:44:59
1,5-CYCLOOCTADIENE Structural

What is 1,5-CYCLOOCTADIENE?

The Uses of 1,5-CYCLOOCTADIENE

cis,cis-1,5-Cyclooctadiene (COD) has been employed as ligand:

  • during regio- and stereoselective synthesis of (Z)-1,2-dihaloalkenes
  • in the preparation of metal complexes, e.g. bis-COD-nickel, a versatile reagent for preparing (PI)-allylnickel halides

General Description

Surface grafting of cis,cis-1,5-cyclooctadiene (cyclic olefin) with low strain energy was explored using ring-opening metathesis polymerization in the vapor phase. The inclusion complex of cis,cis-1,5-cyclooctadiene with β-cyclodextrin (β-CD) was studied by using proton NMR spectroscopy.

Purification Methods

Purify it by GLC. It has been purified via the AgNO3 salt. This is prepared by shaking with a solution of 50% aqueous AgNO3 w/w several times (e.g. 3 x 50mLand4x50mL) at 70ofor ca 20minutes to get a good separation of layers. The upper layers are combined and further extracted with AgNO3 at 40o (2 x 20 mL). The upper layer (19 mL) of original hydrocarbon mixture gives colourless needles of the AgNO3 complex on cooling. The adduct is recrystallised from MeOH (and cooling to 0o). The hydrocarbon is recovered by steam distilling the salt. The distillate is extracted with Et2O, dried (MgSO4), filtered, evaporated and distilled. [Jones J Chem Soc 312 1954,[Beilstein 5 H 116, 5 IV 403.]

Properties of 1,5-CYCLOOCTADIENE

Melting point: −69 °C(lit.)
Boiling point: 149-150 °C(lit.)
Density  0.882 g/mL at 25 °C(lit.)
vapor pressure  25.8 mm Hg ( 37.7 °C)
refractive index  n20/D 1.493
Flash point: 89 °F
storage temp.  2-8°C
solubility  water: soluble0.05g/L
form  Liquid
BRN  1209288
CAS DataBase Reference 1552-12-1(CAS DataBase Reference)

Safety information for 1,5-CYCLOOCTADIENE

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Exclamation Mark
Irritant
GHS07
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H226:Flammable liquids
H302:Acute toxicity,oral
H304:Aspiration hazard
H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H332:Acute toxicity,inhalation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H401:Hazardous to the aquatic environment, acute hazard
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P273:Avoid release to the environment.
P331:Do NOT induce vomiting.
P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405:Store locked up.

Computed Descriptors for 1,5-CYCLOOCTADIENE

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