title: Metal-Assisted One-Pot Synthesis of Isoporphyrin Complexes.
abstract: Zinc and cadmium complexes of meso-arylisoporphyrins carrying a pyrrolyl or dipyrrinyl substituent at the sp(3) carbon atom were obtained through a simple one-pot variation of the Alder-Longo porphyrin synthesis. Key to the formation and stabilization of isoporphyrins is the presence of metal acetates during the oxidative macrocyclization step. The characteristic Q-bands of isoporphyrins are found in the NIR region between 750 nm and 880 nm. All of the isolated pyrrolyl- and dipyrrinyl-appended isoporphyrins are stable under typical laboratory conditions and allow chemical transformations like BF2 coordination, transmetalation, and ligand exchange.
authors.affiliation: Institute for Inorganic and Analytical Chemistry, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany.
authors.forename: Peter
authors.initials: P
authors.lastname: Schweyen
authors.affiliation: Institute for Inorganic and Analytical Chemistry, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Hoffmann
authors.affiliation: Institute for Inorganic and Analytical Chemistry, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany.
authors.forename: Jens
authors.initials: J
authors.lastname: Krumsieck
authors.affiliation: Institute for Inorganic and Analytical Chemistry, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany.
authors.forename: Benedikt
authors.initials: B
authors.lastname: Wolfram
authors.affiliation: Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, 35032, Marburg, Germany.
authors.forename: Xiulan
authors.initials: X
authors.lastname: Xie
authors.affiliation: Institute for Inorganic and Analytical Chemistry, TU Braunschweig, Hagenring 30, 38106, Braunschweig, Germany. m.broering@tu-bs.de.
authors.forename: Martin
authors.identifier: 0000-0001-6807-6579
authors.initials: M
authors.lastname: Bröring
keywords: NIR dyes; isoporphyrins; macrocycles; porphyrinoids; templated synthesis