Synthesis of Chiral Benzoxa(thia)zepine and Pyridoxazepine Derivatives Using Palladium-Catalyzed Intramolecular Aryl Amination Reaction
作者:Nirmal Das Adhikary、Partha Chattopadhyay
DOI:10.1002/ejoc.201101174
日期:2011.12
A palladium-catalyzed method employing different bulky biaryl phosphanes as ligands has been developed for the intramolecular amination of aryl bromides and iodides. A variety of aryl halide substrates have been aminated through the intramolecular pathway in good yield using different sugar-derived amines to give furo-benzoxa(thia)zepine and pyridoxazepine derivatives. The method is capable of furnishing
已经开发了一种钯催化的方法,该方法采用不同的庞大联芳基膦作为配体,用于芳基溴化物和碘化物的分子内胺化。已经使用不同的糖衍生胺通过分子内途径以良好的产率胺化了多种芳基卤化物底物,以得到呋喃苯并氧杂 (thia) zepine 和 pyridoxazepine 衍生物。该方法能够提供具有重要生物学重要性的手性、对映体纯苯并氧杂(硫杂) zepines 和pyridoxazepines。