Cationic Cobalt(II) Bisphosphine Hydroformylation Catalysis: In Situ Spectroscopic and Reaction Studies

Article Chemistry, Multidisciplinary

Alcohol Synthesis by Cobalt-Catalyzed Visible-Light-Driven Reductive Hydroformylation

Connor S. MacNeil et al.

Summary: A cobalt-catalyzed reductive hydroformylation method has been developed for the direct synthesis of one-carbon homologated alcohols. The cobalt hydride can be activated by blue light irradiation to mediate the hydroformylation of alkenes and subsequent hydrogenation of aldehydes. This method exhibits unique regiocontrol for minimally functionalized alkenes.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2022)

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Article Multidisciplinary Sciences

Hydroformylation catalyzed by unmodified cobalt carbonyl under mild conditions

Baoxin Zhang et al.

Summary: This study reports the stable performance of unmodified cobalt carbonyl catalyst at lower syngas pressures and without phosphorus ligands at lower temperatures. The catalyst showed comparable activity to other coordinated cobalt catalysts and exhibited high regioselectivity.

SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Ligand substitution and electronic structure studies of bis(phosphine)cobalt cyclooctadiene precatalysts for alkene hydrogenation

Hongyu Zhong et al.

Summary: The self-exchange reactions of the 17-electron cobalt(0) precatalyst were studied, revealing spontaneous alkyl substitution and ligand exchange reactions in solution. Analysis of solid-state parameters and molecular orbitals suggests a new understanding of the electronic structure of the precatalyst as a low-spin cobalt(II) compound.

CANADIAN JOURNAL OF CHEMISTRY (2021)

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Article Chemistry, Multidisciplinary

Cobalt-Catalyzed Hydroformylation under Mild Conditions in the Presence of Phosphine Oxides

Fabio G. Delolo et al.

Summary: In the presence of phosphine oxides, especially triphenylphosphine oxide (P14), the cobalt-catalyzed hydroformylation of olefins occurs under milder conditions compared to traditional processes. The addition of P14 is shown to significantly enhance the preactivation of the classic cobalt precatalyst, saving time and energy. Additionally, the use of anisole, a solvent with high sustainability, proves advantageous in such processes.

ACS SUSTAINABLE CHEMISTRY & ENGINEERING (2021)

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Article Multidisciplinary Sciences