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Related Experiment Video

Updated: Sep 17, 2025

Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate

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Enantioselective electroreductive alkyne-aldehyde coupling.

Xiyang Cao¹, Yuyang Fu¹, Yongsheng Tao¹

¹The Institute for Advanced Studies, Wuhan University, Wuhan, Hubei, P. R. China.

Nature Communications

|July 1, 2025

Summary

This summary is machine-generated.

This study introduces a novel cobalt-catalyzed electrocatalytic method for coupling alkynes and aldehydes. This approach efficiently generates enantioenriched allylic alcohols with high regio-, stereo-, and enantioselectivity.

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Area of Science:

Organic Chemistry
Catalysis
Electrochemistry

Background:

Asymmetric reductive coupling of π-components is crucial in organic synthesis.
Developing electrocatalytic methods with high selectivity remains a challenge.

Purpose of the Study:

To develop a highly regio- and enantioselective electrocatalytic method for alkyne-aldehyde coupling.
To utilize earth-abundant cobalt and readily available ligands for this transformation.

Main Methods:

Cobalt-catalyzed electroreductive coupling of alkynes and aldehydes.
Utilizing protons as the hydrogen source and electrons as the reductant.
Employing (S,S)-2,3-bis(tert-butylmethylphosphino)quinoxaline (QuinoxP*) as a chiral ligand.

Main Results:

Achieved excellent regioselectivity (>19:1) and stereoselectivity (>19:1 E:Z).
Synthesized a range of enantioenriched allylic alcohols with up to 98% enantiomeric excess (ee).
Demonstrated the efficacy of earth-abundant cobalt and air-stable ligands.

Conclusions:

The developed method offers a sustainable and efficient route to valuable chiral allylic alcohols.
This electrocatalytic approach provides precise control over regio-, stereo-, and enantioselectivity.
Highlights the potential of cobalt electrocatalysis in asymmetric synthesis.