title: Photochemistry of allenyl salicylaldehydes.
abstract: The intramolecular photocycloaddition of aryl aldehydes containing allene side chains is a versatile reaction as it provides a rapid and efficient access to original complex structures such as 1,3,4-tetrahydro-1,4-epoxy-5-alkylidene-2-benzoxepines 2 and substituted 2-oxa-tricyclo[5.2.2.0] (1,5)undeca-4,8,10-triene-9-carbaldehydes 3. Novel polycyclic structures are characterized, and optimized strategies for the synthesis of the substrates 1 are described.
authors.affiliation: Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Birbaum
authors.forename: Antonia
authors.initials: A
authors.lastname: Neels
authors.forename: Christian G
authors.initials: CG
authors.lastname: Bochet