title: Concise synthesis of halogenated chrysenes ([4]phenacenes) that favor pi-stack packing in single crystals.
abstract: A concise synthesis of halogenated chrysene derivatives from 2,2,2-trifluoroethyl tosylate and halostyrene was established. Friedel-Crafts type cyclization of a 1,1-difluoro-1-alkene bearing halogenated phenyl moieties involved skeletal rearrangement and dehydrogenation to afford the title compound in good to moderate yield. X-ray analysis revealed that the halogen substituents induce pi-stack packing of the molecules in the crystals.
authors: Department of Chemistry, Tohoku University, Aoba-ku, Sendai 980-8578, Japan. isobe@m.tains.tohoku.ac.jp
authors: Hiroyuki
authors: H
authors: Isobe
authors: Shunpei
authors: S
authors: Hitosugi
authors: Taisuke
authors: T
authors: Matsuno
authors: Takeaki
authors: T
authors: Iwamoto
authors: Junji
authors: J
authors: Ichikawa