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Picolinamide‐Based Iridium Catalysts for Dehydrogenation of Formic Acid in Water: Effect of Amide N Substituent on Activity and Stability
Author(s) -
Kanega Ryoichi,
Onishi Naoya,
Wang Lin,
Murata Kazuhisa,
Muckerman James T.,
Fujita Etsuko,
Himeda Yuichiro
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201800428
Subject(s) - dehydrogenation , substituent , iridium , amide , formic acid , chemistry , catalysis , medicinal chemistry , polymer chemistry , organic chemistry
To develop highly efficient catalysts for dehydrogenation of formic acid in water, we investigated several Cp*Ir catalysts with various amide ligands. The catalyst with an N ‐phenylpicolinamide ligand exhibited a TOF of 118 000 h −1 at 60 °C. A constant rate (TOF>35 000 h −1 ) was maintained for six hours, and a TON of 1 000 000 was achieved at 50 °C.