Pd-Catalyzed Hydroamination of Alkoxyallenes with Azole Heterocycles: Examples and Mechanistic Proposal

نویسندگان

  • Ivan Bernar
  • Béla Fiser
  • Daniel Blanco-Ania
  • Enrique Gómez-Bengoa
  • Floris P. J. T. Rutjes
چکیده

Palladium-catalyzed regio- and enantioselective addition of azole heterocycles to alkoxyallenes was developed (up to 92% yields and up to 94% ee). DFT calculations suggest a new Pd(0)-driven mechanistic pathway proceeding through protonation of the Pd-coordinated allene (4-PdL2), which develops a strongly nucleophilic character at the central C atom.

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عنوان ژورنال:

دوره 19  شماره 

صفحات  -

تاریخ انتشار 2017