Azulenophenanthrenes from 2, 2′‐Di(arylethynyl)biphenyls through CC Bond Cleavage of a Benzene Ring1. Issue 25 (6th May 2013) - Matsuda, Takanori
Abstract From six to seven: 2, 2′‐Di(arylethynyl)biphenyls undergo a skeletal rearrangement in the presence of a platinum(II) catalyst to afford polycyclic aromatic compounds containing an azulene unit. The reaction involves CC bond cleavage of a benzene ring, which expands into a seven‐membered ring.