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Chemical compound From Wikipedia, the free encyclopedia
1,2,3,4-Tetraphenylnaphthalene is a polycyclic aromatic hydrocarbon commonly prepared in the undergraduate teaching laboratory as an introduction to the Diels-Alder reaction, in this case between benzyne, which acts as the dienophile, (generated in situ) and tetraphenylcyclopentadienone, which acts as the diene.[3] It has two crystalline forms, and therefore has two different melting points.
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Names | |||
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Preferred IUPAC name
1,2,3,4-Tetraphenylnaphthalene | |||
Identifiers | |||
3D model (JSmol) |
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ChemSpider | |||
ECHA InfoCard | 100.151.838 | ||
EC Number |
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PubChem CID |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
C34H24 | |||
Molar mass | 432.55 g/mol | ||
Melting point | 199 to 201 °C (390 to 394 °F; 472 to 474 K) | ||
Hazards | |||
GHS labelling:[2] | |||
Warning | |||
H315, H319, H335 | |||
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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