Synthesis of Methyl (<i>E</i>)-2-Nitromethylcinnamates Derived from Baylis-Hillman Acetates and Conversion into Several Coumarin Derivatives
作者:Kee-Jung Lee、Wan Hong
DOI:10.1055/s-2004-834916
日期:——
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.