title: Asymmetric binary-acid catalysis with InBr3 in the inverse-electron-demanding hetero-Diels-Alder reaction of mono- and bis-substituted cyclopentadienes: remote fluoro-effect on stereocontrol.
abstract: Remote F effect: Unprecedented hetero-Diels-Alder reactions of mono- and bis-substituted cyclopentadienes have been realized by an asymmetric binary-acid catalyst that synergistically combines a chiral phosphoric acid 1 h/InBr(3)  with good periselectivity, high regioselectivity, and excellent stereoselectivity. Substituent mapping of the chiral phosphoric acid indicates a dramatic remote ortho-fluoro effect on the stereocontrol.
authors.affiliation: Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, the Chinese Academy of Sciences, Beijing 100190, PR China.
authors.forename: Jian
authors.initials: J
authors.lastname: Lv
authors.forename: Long
authors.initials: L
authors.lastname: Zhang
authors.forename: Shenshen
authors.initials: S
authors.lastname: Hu
authors.forename: Jin-Pei
authors.initials: JP
authors.lastname: Cheng
authors.forename: Sanzhong
authors.initials: S
authors.lastname: Luo