title: Carbene spacers in bis-porphyrinic scaffolds.
abstract: The preparation of two meso-imidazolylporphyrins was achieved in good yield by Ullmann coupling between a meso-bromotriarylporphyrin and imidazoles. Subsequent alkylation afforded the corresponding imidazolium functionalized porphyrins as direct precursors of the carbene. The complexation of these azolium salts with palladium led to trans-anti bis-porphyrin carbenic complexes.
authors.affiliation: Institut de Chimie, UMR du CNRS, Université de Strasbourg, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Haumesser
authors.forename: Jean-Paul
authors.initials: JP
authors.lastname: Gisselbrecht
authors.forename: Jean
authors.initials: J
authors.lastname: Weiss
authors.forename: Romain
authors.initials: R
authors.lastname: Ruppert