Design of manganese phenol pi-complexes as Shvo-type catalysts for transfer hydrogenation of ketones

Авторы: Shvydkiy Nikita V., Vyhivskyi Oleksandr, Nelyubina Yulia, Perekalin Dmitry
Журнал: ChemCatChem
Год издания: 2019
Издательство: WILEY-VCH
Местоположение издательства: INC, 605 THIRD AVE, NEW YORK, USA, NY, 10158-0012
DOI: 10.1002/cctc.201801797
Аннотация: Catalytic hydrogenation is one of the most important reactions both in academic research and industry. We explored ability of the manganese pi‐complexes to act as Shvo‐type catalysts for transfer hydrogenation of ketones. DFT calculations suggested that the transfer of hydrogen atoms from the hypothetical intermediate [(C6Me3H2OH)Mn(CO)2H] to acetone has low activation barrier of 10.9 kcal mol‐1. Experimentally a number of ketones with various functional groups (OMe, NH2, Cl, CF3, pyridyl) were successfully reduced in isopropanol at 90 °C in the presence of the complex [(C6Me3H2OH)Mn(CO)3]BF4 (1 mol %) and tBuOK (75 mol %). However, further investigation revealed that the reduction was mainly promoted by base rather than the manganese complex.
Добавил в систему: Перекалин Дмитрий Сергеевич

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