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Enantioselective synthesis of β-fluoro-β-aryl-α-amino pentenamides by organocatalytic [2,3]-sigmatropic rearrangement

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Smith_2017_OrgLetters_Enantioselectve_AAM.pdf (753.9Kb)
Date
06/10/2017
Author
Kasten, Kevin
Slawin, Alexandra M. Z.
Smith, Andrew D.
Funder
European Commission
The Royal Society
Grant ID
N/A
WM140071
Keywords
Flluorinated amino-acids
Allylic ammonium ylides
Kinetic resolution
Medicinal chemistry
Protein design
Catalysts
Mannich
Benzotetramisole
Straightforward
Cycloaddition
QD Chemistry
DAS
Metadata
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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
DOI
https://doi.org/10.1021/acs.orglett.7b02452
ISSN
1523-7060
Type
Journal article
Rights
Copyright © 2017 American Chemical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at: https://doi.org/10.1021/acs.orglett.7b02452
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.
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  • University of St Andrews Research
URL
http://pubs.acs.org/doi/suppl/10.1021/acs.orglett.7b02452
URI
http://hdl.handle.net/10023/15992

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