A practical route to tertiary diarylmethylamides or -carbamates from imines, organozinc reagents and acyl chlorides or chloroformates
2011

A Simple Method to Create Diarylmethylamides and Carbamates

publication Evidence: moderate

Author Information

Author(s): Le Gall Erwan, Pignon Antoine, Martens Thierry, Müller Thomas J J

Primary Institution: Institut de Chimie et des Matériaux Paris-Est, UMR 7182 CNRS - Université Paris-Est Créteil

Hypothesis

Can we develop a practical method to synthesize tertiary diarylmethylamides and -carbamates using imines and organozinc reagents?

Conclusion

The study successfully demonstrates a straightforward method for synthesizing diarylmethylamides and -carbamates using a one-pot process.

Supporting Evidence

  • The method allows for the use of imines without isolation, simplifying the process.
  • Yields of diarylmethylamides and -carbamates ranged from low to high depending on the starting materials.
  • Using organozinc reagents is more cost-effective and produces less toxic waste compared to other nucleophiles.

Takeaway

This study shows a new way to make certain chemical compounds quickly and easily using simple ingredients.

Methodology

The method involves forming an imine, activating it with an acyl chloride or chloroformate, and trapping the resulting acyliminium ion with an arylzinc reagent.

Limitations

The harsh conditions required for deprotection of the amide or carbamate function may pose challenges.

Digital Object Identifier (DOI)

10.3762/bjoc.7.112

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