Enantioselective synthesis of β-fluoro-β-aryl-α-amino pentenamides by organocatalytic [2,3]-sigmatropic rearrangement
Abstract
The tetramisole-promoted catalytic enantioselective [2,3]-sigmatropic rearrangement of quaternary ammonium salts bearing a (Z)-3-fluoro-3-arylprop-2-ene group generates, after addition of benzylamine, a range of β-fluoro-β-aryl-α-aminopentenamides containing a stereogenic tertiary fluorine substituent. Cyclic and acyclic nitrogen substituents as well as various aromatic substituents are tolerated, giving the β-fluoro-β-aryl-α-aminopentenamide products in up to 76% yield, 96:4 dr, and 98:2 er.
Citation
Kasten , K , Slawin , A M Z & Smith , A D 2017 , ' Enantioselective synthesis of β-fluoro-β-aryl-α-amino pentenamides by organocatalytic [2,3]-sigmatropic rearrangement ' , Organic Letters , vol. 19 , no. 19 , pp. 5182-5185 . https://doi.org/10.1021/acs.orglett.7b02452
Publication
Organic Letters
Status
Peer reviewed
ISSN
1523-7060Type
Journal article
Description
The research leading to these results (K.K.) has received funding from the ERC under the European Union's Seventh Framework Programme (FP7/2007-2013) / ERC grant agreement n° 279850. A.D.S. thanks the Royal Society for a Wolfson Research Merit Award.Collections
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