ChemInform Abstract: Facile Synthesis of a Pyrrole‐Fused Dibenzo[a, e]pentalene (IX) and Its Application as a New Extended, Ladder‐Type Fused Aromatic System. Issue 23 (June 2015) - Li, Cheng; Liu, Chunming; Li, Yan; Zhu, Xiaozhang; Wang, Zhaohui