Synthesis of diarylmethylamines palladium-catalyzed regioselective arylation of 1,1,3-triaryl-2-azaallyl anions.

Chem Sci

Department of Chemistry, University of Pennsylvania, 231 S. 34th St., Philadelphia, PA 19104, USA. Web: http://titanium.chem.upenn.edu/walsh/index.html.

Published: June 2014

Diarylmethylamines are of great interest due to their prevalence in pharmaceutical chemistry. As a result, new methods for their synthesis are in demand. Herein, we report a versatile protocol for the synthesis of diarylmethylamine derivatives involving palladium-catalyzed arylation of generated 2-azaallyl anion intermediates. The 2-azaallyl anions are generated by reversible deprotonation of readily available aldimine and ketimine precursors. Importantly, the arylated aldimine and ketimine products do not undergo isomerization under the reaction conditions. Scale-up of the arylation and hydrolysis of the resulting products to furnish diarylmethylamines were also successfully performed.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4225812PMC
http://dx.doi.org/10.1039/C3SC53526FDOI Listing

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