title: An in-ketocyclophane.
abstract: Computational studies indicate that some benzophenone-capped cyclophanes should have carbonyl groups pointed directly at their basal benzene rings as a result of conformational restraints imposed by bulky groups in the linking arms of the molecules. Cyclophane 4 was prepared, and its X-ray structure shows it to be the first in-ketocyclophane.
authors.affiliation: Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA.
authors.forename: Qian
authors.initials: Q
authors.lastname: Qin
authors.forename: Joel T
authors.initials: JT
authors.lastname: Mague
authors.forename: Robert A
authors.initials: RA
authors.lastname: Pascal