Electroselective and Controlled Cross-Coupling of Isoindolinones with Alcohols

Area of Science:

• Organic Electrochemistry
• Synthetic Organic Chemistry
• Catalysis

Background:

• Traditional cross-coupling reactions often require metal catalysts and strong bases, limiting substrate scope and posing environmental concerns.
• Developing efficient and selective methods for C-O and C-N bond formation is crucial in organic synthesis.
• Isoindolinone derivatives are important scaffolds in medicinal chemistry and materials science.

Purpose of the Study:

• To develop a novel, efficient, and metal-free electrochemical method for the cross-coupling of isoindolinones with alcohols.
• To establish a controllable synthesis strategy for 3-alkoxyl and N-hydroxymethyl-substituted isoindolinones.
• To demonstrate the broad substrate scope and mild reaction conditions of the developed protocol.

Main Methods:

• Electrochemical cross-coupling of isoindolinones with various alcohols.
• Utilized mild conditions, avoiding metal catalysts and strong bases.
• Employed 4-OH-TEMPO as a mediator to control selectivity and reaction pathway.

Main Results:

• Achieved electroselective and controlled cross-coupling of isoindolinones with alcohols.
• Successfully synthesized 3-alkoxyl and N-hydroxymethyl-substituted isoindolinones with high yields and selectivity.
• Demonstrated tolerance to a wide range of substrates under mild conditions.

Conclusions:

• A novel and efficient electrochemical protocol for isoindolinone functionalization has been established.
• This method provides a versatile and green strategy for constructing C-O and C-N bonds.
• The developed protocol offers a valuable tool for accessing diverse isoindolinone derivatives.