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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 32, Number 4
BKCSDE 32(4)
April 20, 2011 

 
Title
Asymmetric Mannich-type Reactions of Fluorinated Ketoesters with Binaphthyl-Modified Thiourea Catalysts
Author
Young Ku Kang, Sung Je Yoon, Dae Young Kim *
Keywords
Mannich reaction, Asymmetric catalysis, Bifunctional organocatalyst, α-Fluoro-β-ketoesters, NBoc imines
Abstract
The catalytic enantioselective Mannich-type reaction promoted by chiral binaphthyl-modified bifunctional organocatalysts is described. The treatment of α-fluoro-β-ketoesters with N-Boc imines under mild reaction conditions afforded the corresponding β-aminated α-fluoro-β-ketoesters with excellent enantioselectivities (up to 98% ee).
Page
1195 - 1200
Full Text
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