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
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 | n |
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) |
Flame Flammables GHS02 Exclamation Mark Irritant GHS07 Health Hazard GHS08 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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