Transfer hydrogenation of carbon dioxide via bicarbonate promoted by bifunctional C–N chelating CpIr complexes

Metal–ligand cooperative Cp*Ir( iii ) complexes derived from primary benzylic amines effectively promote transfer hydrogenation of atmospheric CO 2 using 2-propanol at 80 °C. Isotope-labelling experiments strengthen that active Ir species can preferentially reduce bicarbonate congeners formed from C...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2020-09, Vol.56 (73), p.10762-10765
Main Authors: Sato, Yasuhiro, Kayaki, Yoshihito, Ikariya, Takao
Format: Article
Language:English
Subjects:
Amines
Bicarbonates
Carbon dioxide
Chelation
Congeners
Hydrogenation
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Summary:Metal–ligand cooperative Cp*Ir( iii ) complexes derived from primary benzylic amines effectively promote transfer hydrogenation of atmospheric CO 2 using 2-propanol at 80 °C. Isotope-labelling experiments strengthen that active Ir species can preferentially reduce bicarbonate congeners formed from CO 2 . The powerful transfer hydrogenation catalyst exhibits remarkable activity for the conversion of bicarbonates into formate salts with a turnover number up to 3200, even without H 2 and CO 2 .
ISSN:1359-7345
1364-548X
DOI:10.1039/d0cc04379f