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Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy

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Stereoselective borylative ketone-diene coupling.

Hee Yeon Cho¹, Zhiyong Yu, James P Morken

¹Department of Chemisty, Merkert Chemistry Center, 2609 Beacon Street, Boston College, Chestnut Hill, Massachusetts 02467, USA.

Organic Letters

|September 13, 2011

Summary

This summary is machine-generated.

This study introduces a novel multicomponent coupling reaction for synthesizing 1,3-diols. The reaction utilizes ketones, dienes, and bis(pinacolato)diboron with a nickel catalyst.

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Area of Science:

Organic Chemistry
Catalysis
Synthetic Methodology

Background:

1,3-diols are valuable synthetic intermediates.
Efficient methods for 1,3-diol synthesis are in demand.
Multicomponent reactions offer atom economy and efficiency.

Purpose of the Study:

To develop a novel stereoselective multicomponent coupling reaction.
To synthesize 1,3-diols from readily available starting materials.
To explore the utility of nickel catalysis in complex bond formations.

Main Methods:

A catalytic system involving nickel(0) bis(1,5-cyclooctadiene) (Ni(cod)(2)) and tri-tert-butylphosphine (P(t-Bu)(3)) was employed.
Ketones, dienes, and bis(pinacolato)diboron (B(2)(pin)(2)) were used as substrates.
The reaction proceeds via a multicomponent coupling followed by oxidation.

Main Results:

A stereoselective multicomponent coupling reaction was achieved.
1,3-diols were obtained as the major products after oxidation.
The reaction demonstrates broad substrate scope for ketones and dienes.

Conclusions:

A new, efficient, and stereoselective route to 1,3-diols has been established.
This methodology provides a powerful tool for accessing complex diol structures.
The developed catalytic system highlights the potential of nickel in multicomponent coupling reactions.