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Synthesis 2005(1): 33-38
DOI: 10.1055/s-2004-834916
DOI: 10.1055/s-2004-834916
PAPER
© Georg Thieme Verlag Stuttgart · New York
Synthesis of Methyl (E)-2-Nitromethylcinnamates Derived from Baylis-Hillman Acetates and Conversion into Several Coumarin Derivatives
Weitere Informationen
Publikationsverlauf
Received
4 August 2004
Publikationsdatum:
17. November 2004 (online)


Abstract
Fast and easy access to methyl (E)-2-nitromethylcinnamates, from the corresponding Baylis-Hillman acetates with NaNO2 in DMF is described. Several ortho-chloro-2-nitromethylcinnamates undergo intramolecular aromatic substitution reaction followed by rearrangement to yield coumarin derivatives.
Key words
Baylis-Hillman reaction - sodium nitrite - methyl (E)-2-nitromethylcinnamates - nitronate anion - coumarin