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77-73-6 - Dicyclopentadiene, 90+%, stab. with 4-tert-butylcatechol - Cyclopentadiene dimer - 3a,4,7,7a-Tetrahydro-4,7-methanoindene - A13643 - Alfa Aesar

A13643 Dicyclopentadiene, 90+%, stab. with 4-tert-butylcatechol

Codice CAS
77-73-6
Sinonimi
Cyclopentadiene dimer
3a,4,7,7a-Tetrahydro-4,7-methanoindene

Dimensioni Prezzo ($) Quantità Disponibilità
500ml 22,60
2500ml 64,10
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Dicyclopentadiene, 90+%, stab. with 4-tert-butylcatechol

MDL
MFCD00078246
EINECS
201-052-9

Proprietà chimiche

Formula
C10H12
Peso formula
132.21
Punto di ebollizione
171-173°
Punto di infiammabilità
26°(78°F)
Densità
0.982
Indice di rifrazione
1.5100
Solubilità
Immiscible with water.

Applicazioni

Dicyclopentadiene is used in resins, particularly unsaturated polyester resins. It plays a major role in inks, adhesives and paints. It is also used as a monomer in polymerization reactions. It is a precursor for the preparation of endo-tetrahydrodicyclopentadiene, which reacts with aluminum chloride at higher temperature to give adamantine. It undergoes a retro-Diels-Alder reaction to yield cyclopentadiene, which acts as ligand in inorganic chemistry.

Note

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.

Letteratura

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).

Wang, L.; Ma, Y.; Qing, S.; Gao, Z.; Eli, W.; Wang, T. Magnetically Separable Fe3O4 Supported Co-Rh Bimetallic Catalysts for Dicyclopentadiene Hydroformylation to Value-Added Fine Chemicals. Energy Environ. Focus 2015, 4 (4), 334-339.

Autenrieth, B.; Jeong, H.; Forrest, W. P.; Axtell, J. C.; Ota, A.; Lehr, T.; Buchmeiser, M. R.; Schrock, R. R. Stereospecific Ring-Opening Metathesis Polymerization (ROMP) of endo-Dicyclopentadiene by Molybdenum and Tungsten Catalysts. Macromolecules 2015, 48 (8), 2480-2492.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H225-H302-H332-H315-H319-H335-H411

Highly 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.

Dichiarazioni precauzionali: P210-P261-P273-P280-P303+P361+P353-P305+P351+P338-P304+P340-P362-P405-P501a

Keep away from heat/sparks/open flames/hot surfaces. - No smoking. Avoid breathing dust/fume/gas/mist/vapours/spray. Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. 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. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Take off contaminated clothing and wash before reuse. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,2739
Beilstein
1904092
Classe di rischio
3
Gruppo di imballaggio
III
Codice tariffe armonizzato
2902.19
TSCA
Yes
RTECS
PC1050000

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