title: HOTf mediated cascade reactions of 1-arenoylcyclopropanecarboxylic acids with arenes.
abstract: The cascade reactions of 1-arenoylcyclopropanecarboxylic acids with arenes proceed smoothly in freshly distilled HOTf to give the corresponding tetrahydro-5H-benzo[c]fluorene derivatives in good yields along with high stereoselectivities under mild conditions.
authors.affiliation: State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, PR China.
authors.forename: Gen-Qiang
authors.initials: GQ
authors.lastname: Chen
authors.forename: Xiang-Ying
authors.initials: XY
authors.lastname: Tang
authors.forename: Min
authors.initials: M
authors.lastname: Shi