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1,5-CYCLOOCTADIENE

1,5-CYCLOOCTADIENE structure

CAS No:
1552-12-1
Formula:
C8H12
Chemical Name:
1,5-CYCLOOCTADIENE
Synonyms:
(1Z,5Z)-1,5-cyclooctadiene;(1Z,5Z)-cyclooctadiene;(Z,Z)-1,5-Cyclooctadiene;1,5-cyclooctadiene(z,z);1,5-cyclooctadiene,(Z,Z)-;cis,cis-Cycloocta-1,5-diene;CIS,CIS-1,5-CYCLOOCTADIENE;COD
Categories:
Chemical Reagents > Organic Reagents

Description

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

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.]

1,5-CYCLOOCTADIENE Basic Attributes

Molecular Weight：

108.18

Exact Mass：

108.18

BRN：

1209288

EC Number：

216-291-4

TSCA：

Yes

Characteristics

PSA：

XLogP3：

3.67

Appearance：

Liquid

Density：

0.882 g/mL at 25 °C(lit.)

Melting Point：

−69 °C(lit.)

Boiling Point：

149-150 °C(lit.)

Flash Point：

95 DEG F.

Refractive Index：

n20/D1.493

Water Solubility：

water: soluble 0.05g/L

Storage Conditions：

2-8ºC

Vapor Pressure：

25.8 mm Hg ( 37.7 °C)

Vapor Density：

3.66 (AIR= 1)

Critical Temperature & Pressure：

2-8°C

Safety Information

Packing level：

III

Hazard category：

Transport codes：

UN 2520 3/PG 3

wgk germany：

hazard class code：

Xn,N

safety instructions：

26-36-62-36/37-23

RTECS Number：

GX9620000

Marks：

Xn,N

Precautionary statement(s)：

P210, P233, P240, P241, P242, P243, P260, P261, P264, P271, P272, P273, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P314, P321, P333+P313, P337+P313, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501

Hazard Statements：

10-36/38-42/43-65-51/53-20/22

RIDADR：

UN 2520 3/PG 3

1,5-CYCLOOCTADIENE Use and Manufacturing

cis,cis-1,5-Cyclooctadiene (COD) has been employed as ligand:during regio- and stereoselective synthesis of (Z)-1,2-dihaloalkenesin the preparation of metal complexes, e.g.bis-COD-nickel, a versatile reagent for preparing (PI)-allylnickel halides

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