title: Visible-light-responsive multielectron redox catalysis of lacunary polyoxometalates induced by substrate coordination to their lacuna.
abstract: We describe herein the efficient visible-light-responsive polyoxometalate-based multielectron photoredox catalysis induced by in situ coordination of alcohols to the lacuna of TBA4 H4 [γ-SiW10 O36 ] (I, TBA=tetra-n-butylammonium). The coordination of alcohols to the lacuna of I generated a new highest occupied molecular orbital as the electron donor level and enabled the visible-light-responsive multielectron transfer from alcohols to I, which could be utilized for aerobic alcohol oxidation and one-pot synthesis of N-arylimines starting from nitroarenes and primary alcohols.
authors.affiliation: Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: (+81) 3-5841-7220.
authors.forename: Kosuke
authors.initials: K
authors.lastname: Suzuki
authors.forename: Jinu
authors.initials: J
authors.lastname: Jeong
authors.forename: Kazuya
authors.initials: K
authors.lastname: Yamaguchi
authors.forename: Noritaka
authors.initials: N
authors.lastname: Mizuno
mesh_terms: D000438:Alcohols / Q000737:chemistry; D002384:Catalysis; D007097:Imines / Q000138:chemical synthesis / Q000737:chemistry; D008027:Light; D010084:Oxidation-Reduction; D011789:Quantum Theory; D017973:Tungsten Compounds / Q000737:chemistry*; D000099294:Polyoxometalates
chemical_list: D000438:Alcohols; D007097:Imines; D017973:Tungsten Compounds; C102296:polyoxometalate I; D000099294:Polyoxometalates
keywords: charge transfer; imines; nitroarenes; photoredox catalysis; polyoxometalates