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| | Diphenylacetylene Basic information |
| | Diphenylacetylene Chemical Properties |
| Melting point | 59-61 °C (lit.) | | Boiling point | 170 °C/19 mmHg (lit.) | | density | 0.99 g/mL at 25 °C (lit.) | | refractive index | 1.6415 (estimate) | | Fp | 170°C/19mm | | storage temp. | Sealed in dry,2-8°C | | form | Crystalline Powder and Chunks | | color | Light yellow to brownish | | Specific Gravity | 0.99 | | Water Solubility | Miscible with ether and hot alcohol. Immiscible with water. | | Merck | 14,9504 | | BRN | 606478 | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. | | InChIKey | JRXXLCKWQFKACW-UHFFFAOYSA-N | | CAS DataBase Reference | 501-65-5(CAS DataBase Reference) | | NIST Chemistry Reference | Diphenylethyne(501-65-5) | | EPA Substance Registry System | Benzene, 1,1'-(1,2-ethynediyl)bis- (501-65-5) |
| Safety Statements | 24/25-22 | | WGK Germany | 3 | | TSCA | Yes | | HS Code | 29029090 |
| | Diphenylacetylene Usage And Synthesis |
| Chemical Properties | white crystals | | Uses | Organic synthesis, purified grade, primary fluor
or wavelength shifter in soluble scintillators. | | Uses | 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. | | Definition | ChEBI: An arylacetylene that is acetylene in which the hydrogens are replaced by phenyl groups. | | Synthesis Reference(s) | Canadian Journal of Chemistry, 61, p. 86, 1983 DOI: 10.1139/v83-015
Journal of the American Chemical Society, 87, p. 863, 1965 DOI: 10.1021/ja01082a029
The Journal of Organic Chemistry, 51, p. 3830, 1986 DOI: 10.1021/jo00370a016 | | Purification Methods | Crystallise tolan from EtOH. [Beilstein 5 H 656, 5 IV 2276.] |
| | Diphenylacetylene Preparation Products And Raw materials |
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