4.4 Article

Enantioselective Aza-Michael Addition to Conjugated Nitroenynes Catalyzed by Chiral Arylaminophosphonium Barfates

Journal

SYNLETT
Volume -, Issue 9, Pages 1265-1267

Publisher

GEORG THIEME VERLAG KG
DOI: 10.1055/s-0030-1260541

Keywords

phosphonium salt; Bronsted acid; aza-Michael addition; propargyl amine; asymmetric synthesis

Funding

  1. Nagoya University
  2. JSPS for Scientific Research
  3. Mitsubishi Foundation
  4. Funding Program for Next Generation World-Leading Researchers

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Enantioselective aza-Michael addition to conjugated nitroenynes has been developed. P-Spiro heterochiral arylaminophosphonium barfate 1b.BArF effectively catalyzes the reaction, and the corresponding conjugate adducts, beta-amino homopropargylic nitro compounds, are obtained in good chemical yields with high enantioselectivities.

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