4.8 Article

Bismuth(III)-Catalyzed Sequential Enamine-Imine Tautomerism/2-Aza-Cope Rearrangement of Stable β-Enaminophosphonates: One-Pot Synthesis of β-Aminophosphonates

Journal

ORGANIC LETTERS
Volume 22, Issue 7, Pages 2811-2815

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.0c00796

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Funding

  1. NSFC [21532001]
  2. International Joint Research Centre for Green Catalysis and Synthesis, Gansu Provincial Sci. & Tech. Department [2016B01017]

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A novel catalytic tautomeric transformation of a beta-enaminophosphoryl and 2-aza-Cope rearrangement sequence has been successfully applied to the one-pot synthesis of beta-aminophosphonates with high efficiency and good tolerance. In this tandem reaction, Bi(OTf)(3) exhibits unique activities and promotes both of enamine-imine tautomerism and 2-aza-Cope rearrangement.

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