[A13643] CAS 77-73-6 | Dicyclopentadiene, 90+%, stab. with 4-tert-butylcatechol

CAS : 77-73-6
UN# : UN2048
MDL : MFCD00078246
Hazard Class : 3
EINECS : 201-052-9
Packing Group : III

Other name :

Cyclopentadiene dimer3a,4,7,7a-Tetrahydro-4,7-methanoindene

Chemical Properties

Formula : C10H12
Formula weight : 132.21
Boiling Point : 171-173°
Flash point : 26°(78°F)
Density : 0.982
Refractive Index : 1.5100
Sensitivity : Ambient temperatures.
Form : Liquid
Solubility : Immiscible with water.

Literature References

Source, on heating, of monomeric cyclopentadiene. For details, see: Org. Synth. Coll., 7, 339 (1990). Diels-Alder reaction with 1,4-benzoquinones and subsequent retro Diels-Alder with elimination of cyclopentadiene have been used in synthesis of 2-cyclohexene-1,4-diones: J. Chem. Soc. (C), 124 (1969); Org. Synth. Coll., 9, 186 (1998). For an enantioselective, catalytic Diels-Alder reaction, see: Org. Synth. Coll., 9, 67 (1998). Readily deprotonated by strong bases to give the 6πAlpha/Delectron cyclopentadienyl anion, which forms stable complexes with many transition metals. Conversion to ferrocene by two alternative procedures: Org. Synth. Coll., 4, 473 (1963), or using crown-ether catalysis: Angew. Chem. Int. Ed., 18, 792 (1979). Preparation of ruthenocene: Org. Synth. Coll., 5, 1001 (1973). The cyclopentadienyl anion reacts with carbonyl compounds with the formation of fulvenes. For example using KOH and 18-crown-6, see: Synthesis, 799 (1980). For a review of methods for the synthesis of a wide variety of 1,3-bifunctionalized cyclopentanes and cyclopentenes from cyclopentadiene, see: Angew. Chem. Int. Ed., 21, 480 (1982).

Notes

Store in a cool place. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with strong oxidizing agents, strong acids and strong bases.Other References:Beilstein: 1904092Merck: 14,2739UN#: UN2048

Grade Specifications

Grade Specifications

Hazard Statements : H225-H302-H332-H315-H319-H335-H411Highly flammable liquid and vapour.Harmful if swallowed.Harmful if inhaled.Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.Toxic to aquatic life with long lasting effects.
Precautionary Statements : P210-P241-P303+P361+P353-P305+P351+P338-P405-P501aKeep away from heat/sparks/open flames/hot surfaces. – No smoking.Use explosion-proof electrical/ventilating/lighting/ equipment.IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.