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501-65-5 - Diphenylacetylene, 99% - Tolan - A13979 - Alfa Aesar

A13979 Diphenylacetylene, 99%

Numéro CAS
501-65-5
Synonymes
Tolan

Dimensions Prix ($) Quantité Disponibilité
5g 21,80
25g 48,50
100g 170,00
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Diphenylacetylene, 99%

MDL
MFCD00004786
EINECS
207-926-6

Propriétés chimiques

Formule
C14H10
Poids formulaire
178.23
Point de fusion
58-62°
Point d'ébullition
170°/19mm
Densité
0.990
Solubilité
Miscible with ether and hot alcohol. Immiscible with water.

Applications

Diphenylacetylene is often used as a building block in organic and organometallic chemistry. It acts as dienophile and under goes Diels-Alder reaction with tetraphenylcyclopentadienone to prepare hexaphenylbenzene. It acts as a precursor in the preparation of 3-alkoxycyclopropene by reacting with benzal chloride in the presence of potassium t-butoxide.

Notes

Incompatible with strong oxidizing agents.

Références bibliographiques

For an example of use as a Diels-Alder dienophile, see: Org. Synth. Coll., 5, 604 (1973).

For transfer of methylene groups from dimsyl sodium, giving 2,3-diphenylbutadiene, see: Org. Synth. Coll., 6, 531 (1988).

Can be oxidized to benzil using iodine-DMSO: Synthesis, 131 (1991).

Shi, Y.; Li, G.; Zhao, B.; Chen, Y.; Chao, P.; Zhang, H.; Wang, X.; Wang, T. Synthesis and optical properties of cationic cyclopentadienyl iron complexes with diphenylacetylene chromophores. Inorg. Chim. Acta 2015, 427, 259-265.

Le, K. V.; Aya, S.; Ogino, S.; Okano, K.; Araoka, F.; Takezoe, H. Large Twist Elastic Constant in Diphenylacetylene-Core-Based Liquid Crystals. Mol Cryst Liq Cryst 2015, 614 (1), 124-127.

Mentions de danger et de prudence du SGH

Mentions de prudence: P260u-P201-P280-P303+P361+P353-P305+P351+P338-P301+P330+P331-P304+P340-P310a-P405-P501a

Obtain special instructions before use. 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 SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Autres références

Merck
14,9504
Beilstein
606478
Code tarifaire harmonisé
2902.90
TSCA
Yes

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Analytique et matériel de laboratoire