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.
描述了一种从相应的Baylis-Hillman醋酸盐中快速简便地获得甲基(E)-2-硝基甲基肉桂酸酯的方法,该方法使用NaNO2在DMF中进行。一些邻氯-2-硝基甲基肉桂酸酯经历分子内芳香取代反应,随后重排生成香豆素衍生物。