• Title/Summary/Keyword: N-Boc imines

Search Result 1, Processing Time 0.015 seconds

Asymmetric Mannich-type Reactions of Fluorinated Ketoesters with Binaphthyl-Modified Thiourea Catalysts

  • Kang, Young-Ku;Yoon, Sung-Je;Kim, Dae-Young
    • Bulletin of the Korean Chemical Society
    • /
    • v.32 no.4
    • /
    • pp.1195-1200
    • /
    • 2011
  • The catalytic enantioselective Mannich-type reaction promoted by chiral binaphthyl-modified bifunctional organocatalysts is described. The treatment of ${\alpha}$-fluoro-${\beta}$-ketoesters with N-Boc imines under mild reaction conditions afforded the corresponding ${\beta}$-aminated ${\alpha}$-fluoro-${\beta}$-ketoesters with excellent enantioselectivities (up to 98% ee).