title: Templating photodimerization of trans-cinnamic acids with cucurbit[8]uril and gamma-cyclodextrin.
abstract: Cucurbit[8]uril and gamma-cyclodextrin are able to align two olefin molecules in a head-head fashion within their large cavities. Excitation of such templated olefins results in syn head-head cyclobutanes in nearly quantitative yields. The methodology revealed here works with trans-cinnamic acids that do not dimerize either in solution or in the solid state and with the ones that yield only anti head-tail dimer in the solid state. [reaction: see text]
authors.affiliation: Department of Chemistry, Tulane University, New Orleans, LA 70118, USA.
authors.forename: Mahesh
authors.initials: M
authors.lastname: Pattabiraman
authors.forename: Arunkumar
authors.initials: A
authors.lastname: Natarajan
authors.forename: Lakshmi S
authors.initials: LS
authors.lastname: Kaanumalle
authors.forename: V
authors.initials: V
authors.lastname: Ramamurthy