Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 22, Issue 32, Pages 11239-11244Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201601621
Keywords
cyclization; fluoroalkyl amino reagents; nitrogen heterocycles; regioselectivity; synthetic methods
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Funding
- Bayer S.A.S.
- CNRS France
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A novel approach towards highly functionalized fluoroalkyl pyrazoles was developed by using fluoroalkyl amino reagents in combination with a variety of fluorinated ketimines. Tuneable introduction of fluoroalkyl groups in the 3-and 5-positions was possible by using vinamidinium inter-mediates or the corresponding enamino ketones after hydrolysis. These high-value building blocks can give rise to a large number of analogues for bioactivity screening and discovering new heterocyclic bioactive ingredients in various life science fields.
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