Recent developments in functionalization of acyclic α-keto amides.

Area of Science:

• Organic Chemistry
• Medicinal Chemistry
• Synthetic Chemistry

Background:

• α-Keto amides are vital structural motifs in biological and chemical sciences.
• Their acyclic form presents multiple reactive centers with both electrophilic and nucleophilic properties.
• They serve as key intermediates and drug molecules.

Purpose of the Study:

• To review recent developments in asymmetric and achiral reactions of acyclic α-keto amides.
• To categorize these reactions based on functionalization (mono-, di-, tri-).
• To highlight the synthesis of diverse cyclic and acyclic molecules.

Main Methods:

• Focus on reactions forming C-C, C-O, C-N, and C-H bonds.
• Categorization based on the number of functionalizations applied to α-keto amides.
• Inclusion of over 50 examples since 1992.

Main Results:

• Demonstrated synthesis of cyclic and acyclic molecules using acyclic α-keto amides.
• Over 50 examples showcase functionalization strategies.
• Established classification into mono-, dual-, and triple-functionalization.

Conclusions:

• Acyclic α-keto amides are versatile building blocks for complex molecule synthesis.
• These reactions are crucial for creating biologically active compounds, heterocycles, and metal complexes.
• The review provides a comprehensive overview of functionalization strategies since 1992.