Electroreductively Induced Radicals for Organic Synthesis

Area of Science:

• Organic electrochemistry
• Sustainable chemistry
• Green synthesis

Background:

• Organic electrochemistry offers sustainable synthetic routes by reducing byproducts and using renewable energy.
• Oxidative electrochemistry is well-explored, but reductive electrolysis remains underdeveloped.
• Radical intermediates are crucial in organic synthesis.

Purpose of the Study:

• To review recent advances (since 2016) in transition-metal-free electroreductive organic transformations.
• To highlight the generation and application of cathodically generated radicals.
• To focus on selective organic transformations using electroreductive radical chemistry.

Main Methods:

• Electrochemical reduction (electroreduction) as a key synthetic tool.
• Generation of various radical species (alkyl, aryl, acyl, silyl, fluorosulfonyl, trifluoromethoxyl) at the cathode.
• Transition-metal-free reaction conditions.

Main Results:

• Demonstrated the utility of electrochemically generated radicals in various organic reactions.
• Showcased selective transformations achievable through reductive electrolysis.
• Highlighted the potential of these methods for sustainable synthesis.

Conclusions:

• Transition-metal-free electroreductive radical chemistry is a rapidly advancing field.
• Cathodically generated radicals offer a powerful and sustainable approach to organic synthesis.
• Further exploration of reductive electrolysis is warranted for novel synthetic methodologies.