Azulenophenanthrenes from 2, 2′‐Di(arylethynyl)biphenyls through CC Bond Cleavage of a Benzene Ring1. (6th May 2013) - Matsuda, Takanori; Goya, Tsuyoshi; Liu, Lantao; Sakurai, Yusuke; Watanuki, Shoichi; Ishida, Naoki; Murakami, Masahiro