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Merck
  • Rhodium-catalyzed dynamic kinetic asymmetric transformations of racemic tertiary allylic trichloroacetimidates with anilines.

Rhodium-catalyzed dynamic kinetic asymmetric transformations of racemic tertiary allylic trichloroacetimidates with anilines.

Journal of the American Chemical Society (2012-05-09)
Jeffrey S Arnold, Hien M Nguyen
摘要

The rhodium-catalyzed regio- and enantioselective amination of racemic tertiary allylic trichloroacetimidates with a variety of aniline nucleophiles is a direct and efficient route to chiral α,α-disubstituted allylic N-arylamines. We describe the first dynamic kinetic asymmetric transformations of racemic tertiary allylic electrophiles with anilines utilizing a chiral diene-ligated rhodium catalyst. The method allows for the formation of α,α-disubstituted allylic N-arylamines in moderate to good yields with good to excellent levels of regio- and enantioselectivity.