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CYCLOOCTENE

CAS No.931-87-3
Chemical Name:CYCLOOCTENE
CBNumber:CB7340240
Molecular Formula:C8H14
Formula Weight:110.2
MOL File:931-87-3.mol

CYCLOOCTENE Property

Melting point −16 °C(lit.)
Boiling point 32-34 °C12 mm Hg(lit.)
Density 0.848 g/mL at 20 °C(lit.)
vapor pressure 9.9hPa at 20℃
refractive index n20/D 1.470
Flash point 77 °F
storage temp. Flammables area
solubility H2O: insoluble
form Liquid
color Clear colorless to light brown
Viscosity 2.22mm2/s
Water Solubility Miscible with alcohol and ether. Immiscible with water.
Sensitive Air Sensitive
BRN 1280166
LogP 5 at 25℃
CAS DataBase Reference 931-87-3(CAS DataBase Reference)
FDA UNII AE340T3540
EPA Substance Registry System Cyclooctene, (1Z)- (931-87-3)
UNSPSC Code 12352100
NACRES NA.22

Safety

Hazard Codes :Xn
Risk Statements :10-65
Safety Statements :29-33
RIDADR :UN 3295 3/PG 3
WGK Germany :3
TSCA :Yes
HazardClass :3
PackingGroup :III
HS Code :29021990

NFPA 704:

	2
3		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H304-H401-H411-H226
Precautionary statements P210-P280a-P301+P310a-P303+P361+P353-P405-P501a

CYCLOOCTENE Price More Price(6)

Brand: Sigma-Aldrich(India)
Product number: 125482
Product name : cis-Cyclooctene
Purity: contains 100-200?ppm Irganox 1076 FD as antioxidant, 95%
Packaging: 25ML
Price: ₹4264.13
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 125482
Product name : cis-Cyclooctene
Purity: contains 100-200?ppm Irganox 1076 FD as antioxidant, 95%
Packaging: 500ML
Price: ₹31780.58
Updated: 2022/06/14
Buy: Buy

Brand: ALFA India
Product number: ALF-A13477-AP
Product name : cis-Cyclooctene, 95%, stab.
Purity:
Packaging: 500mL
Price: ₹4011
Updated: 2022/05/26
Buy: Buy

Brand: ALFA India
Product number: ALF-A13477-AK
Product name : cis-Cyclooctene, 95%, stab.
Purity:
Packaging: 250mL
Price: ₹4484
Updated: 2022/05/26
Buy: Buy

Brand: ALFA India
Product number: ALF-A13477-AE
Product name : cis-Cyclooctene, 95%, stab.
Purity:
Packaging: 100mL
Price: ₹4792
Updated: 2022/05/26
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CYCLOOCTENE Chemical Properties,Usage,Production

Chemical Properties clear colourless to light brown liquid
Uses cis-Cyclooctene is used as a displaced ligand in chlorobis(cyclooctene)rhodium dimer and chlorobis(cyclooctene)iridium dimer in organometallic chemistry. It acts as a monomer used in synthetic chemistry. It is used to prepare 1-chloro-4-(trichloromethyl) cyclooctane by reaction with carbon tetrachloride using dichlorotris(triphenylphosphine) ruthenium(II) as a catalyst. Further, it is used to study the alkenes chemisorbed on silicon(100) by scanning tunneling microscopy.
Synthesis Reference(s) Journal of the American Chemical Society, 102, p. 2693, 1980 DOI: 10.1021/ja00528a029
The Journal of Organic Chemistry, 40, p. 2555, 1975 DOI: 10.1021/jo00905a040
Tetrahedron Letters, 14, p. 2667, 1973
General Description cis-Cyclooctene undergoes addition reaction with carbon tetrachloride catalyzed by dichlorotris(triphenylphosphine) ruthenium(II) to yield 1-chloro-4-(trichloromethyl) cyclooctane (1,4-adduct). It undergoes epoxidation catalyzed by molybdenum oxide nanoparticles incorporated in a mesoporous silica shell coated on dense silica-coated magnetite nanoparticles.
Purification Methods The cis-isomer is freed from the trans-isomer by fractional distillation through a spinning-band column, followed by preparative gas chromatography on a Dowex 710-Chromosorb W GLC column. It is passed through a short alumina column immediately before use [Collman et al. J Am Chem Soc 108 2588 1986]. It has also been distilled in a dry N2 glove box from powdered fused NaOH through a Vigreux column (p 11), then passed through activated neutral alumina before use [Wong et al. J Am Chem Soc 109 4328 1987]. Alternatively it can be purified via the AgNO3 salt. This salt is obtained from crude cyclooctene (40 mL) by shaking at 70-80o with 50% w/w AgNO3 (2 x 15 mL) to remove cyclooctadienes (aqueous layer). Extraction is repeated at 40o (4 x 20 mL, of 50% AgNO3). Three layers are formed each time. The middle layer contains the AgNO3 adduct of cyclooctene which crystallises on cooling the layer to room temperature. The adduct (complex 2:1) is highly soluble in MeOH (at least 1g/mL) from which it crystallises in large flat needles when cooled at 0o. It is dried under slight vacuum for 1 week in the presence of CaCl2 and paraffin wax soaked in cyclooctene. It has m 51o and loses hydrocarbon on exposure to air. cis-Cyclooctene can be recovered by steam distillation of the salt, collected, dried (CaCl2) and distilled in vacuum. [Braude et al. J Chem Soc 4711 1957, AgNO3: Jones J Chem Soc 1808 1954, Cope & Estes J Am Chem Soc 72 1128 1950, Beilstein 5 I 35, 5 IV 263.] FLAMMABLE LIQUID.