Aldehydes: magnificent acyl equivalents for direct acylation

Area of Science:

• Green chemistry
• Organic synthesis
• Catalysis

Background:

• Chemical synthesis faces green chemistry challenges, requiring efficient methods for bioactive compound production.
• Acylation reactions are crucial for synthesizing substituted ketone motifs found in many pharmaceuticals.
• Traditional acylation methods often lack selectivity and atom economy.

Purpose of the Study:

• To review the use of aldehydes as acylation surrogates for C-H bond functionalization.
• To highlight strategies for selective acylation of arene, heteroarene, and alkyl C-H bonds.
• To provide insights into mechanistic aspects for designing novel bioactive molecules.

Main Methods:

• C-H activation strategies utilizing aldehydes as acylation reagents.
• Selective functionalization of various C-H bonds (sp3, sp2, sp).
• Review of published literature on aldehyde-mediated acylation.

Main Results:

• Aldehydes serve as effective, less toxic surrogates for acylation.
• Proficient C-H activation enables selective acylation of diverse substrates.
• Synthesis of bioactive compounds with high atom economy and selectivity is achievable.

Conclusions:

• Aldehyde-mediated C-H acylation is a powerful strategy for green synthesis.
• Understanding mechanistic aspects facilitates the design of novel bioactive molecules.
• This approach offers significant advantages for academic and industrial researchers.