1,2,3,4-Tetraphenylnaphthalene

changed changed 477183662 1,2,3,4-Tetraphenylnaphthalene at Sigma-Aldrich Tetraphenylnaphthalene.png Skeletal formula Tetraphenylnaphthalene-3D-balls.png Ball-and-stick model 1,2,3,4-Tetraphenylnaphthalene correct chemspider 62982 623-131-0 1/C34H24/c1-5-15-25(16-6-1)31-29-23-13-14-24-30(29)32(26-17-7-2-8-18-26)34(28-21-11-4-12-22-28)33(31)27-19-9-3-10-20-27/h1-24H c15ccccc1c(c2ccccc2)c(c3ccccc3)c(c4ccccc4)c5c6ccccc6 UCTTYTFENYGAPP-UHFFFAOYAS correct chemspider 1S/C34H24/c1-5-15-25(16-6-1)31-29-23-13-14-24-30(29)32(26-17-7-2-8-18-26)34(28-21-11-4-12-22-28)33(31)27-19-9-3-10-20-27/h1-24H correct chemspider UCTTYTFENYGAPP-UHFFFAOYSA-N correct CAS 751-38-2 correct FDA AQ533SQ362 69783 C1=CC=C(C=C1)C2=C(C(=C(C3=CC=CC=C32)C4=CC=CC=C4)C5=CC=CC=C5)C6=CC=CC=C6 C34H24 432.55 g/mol 199 to 201 1,2,3,4-Tetraphenylnaphthalene https://pubchem.ncbi.nlm.nih.gov/compound/69783#section=Safety-and-Hazards pubchem.ncbi.nlm.nih.gov 12 December 2021 en 07 Warning 315 319 335 261 264 271 280 302+352 304+340 305+351+338 312 321 332+313 337+313 362 403+233 405 501 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.Organic Syntheses, Coll. Vol. 5, p.1037 (1973); Vol. 46, p.107 (1966). Link It has two crystalline forms, and therefore has two different melting points. References Category:Naphthalenes Category:Phenyl compounds