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Mixed Picolinate and Quinaldinate Iron(III) Complexes for the Catalytic Oxidation of Alcohols with Hydrogen Peroxide
Author(s) -
Tanaka Shinji,
Kon Yoshihiro,
Ogawa Atsuko,
Uesaka Yumiko,
Tamura Masanori,
Sato Kazuhiko
Publication year - 2016
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201600362
Subject(s) - chemistry , catalysis , acetophenone , hydrogen peroxide , redox , lability , alcohol oxidation , ligand (biochemistry) , inorganic chemistry , catalytic oxidation , electrochemistry , medicinal chemistry , organic chemistry , biochemistry , receptor , electrode
A series of Fe mixed picolinate and quinaldinate complexes that catalyze the H 2 O 2 oxidation of alcohols are presented. The Fe catalysts are generated in situ by simple mixing of iron acetate with 6‐methylpicolinic acid (6‐MepicH) and 4‐chloropicolinic acid (4‐ClpicH); they showed high catalytic activity for H 2 O 2 oxidation of 1‐phenylethanol to acetophenone. Fe complexes generated in situ as precatalysts were successfully isolated and structurally characterized. Based on the single‐crystal X‐ray analysis and electrochemical measurements of the Fe complexes, the lability of picolinate and/or quinaldinate ligand and the redox potential of Fe III were found to be important factors for the catalytic reaction.