title: Synthesis of 2,4,6-Trisubstituted Pyridines by Oxidative Eosin Y Photoredox Catalysis.
abstract: Eosin Y, an organic dye, was activated as a photoredox catalyst in the presence of molecular oxygen using visible light and, when it was used in the reaction of aryl ketones and benzyl amines, afforded good yields (52-87%) of 2,4,6-triarylpyridines (21 examples) at ambient temperature. The aryl groups at the 2- and 6-positions are derived from ketones, while benzyl amine plays the dual role of providing an aryl functionality at the 4-position of pyridine as well as being a nitrogen donor.
authors.affiliation: Garware Research Centre, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune) , Pune 411007, India.
authors.forename: Rajendra S
authors.initials: RS
authors.lastname: Rohokale
authors.affiliation: Institute fuer Organische Chemie, Universitaet Regensburg , Universitatstrasse 31, 93053 Regensburg, Germany.
authors.forename: Burkhard
authors.initials: B
authors.lastname: Koenig
authors.affiliation: Garware Research Centre, Department of Chemistry, Savitribai Phule Pune University (formerly University of Pune) , Pune 411007, India.
authors.forename: Dilip D
authors.initials: DD
authors.lastname: Dhavale