Novel perfluorophenyl phosphonate analogues of phenylglycine and homophenylalanine were prepared in good to excellent yields, and subjected to solid state characterization by single-crystal X-ray diffraction analysis, and to investigations with the use of DFT methods. The α-aminophosphonates have a big potential for biological activity, and through SNAr reactions may give an entrance to further structurally
制备了苯甘氨酸和高苯丙氨酸的新型全氟苯基膦酸酯类似物,收率很高,并通过单晶X射线衍射分析进行了固态表征,并使用DFT方法进行了研究。 α-氨基膦酸酯具有很大的生物活性潜力,并且通过S N Ar反应可以为这两种氨基酸的进一步结构可变的类似物提供入口。
Iodine-promoted imino-Diels–Alder reaction of fluorinated imine with enol ether: synthesis of 2-perfluorophenyl tetrahydroquinoline derivatives
Iodine was used to catalyze the hetero-Diels-Aider reaction of pentafluorobenzylidineaniline (C6F5CH=NAr 1) with enol ethers to afford the corresponding tetrahydroquinolines derivatives as a mixture of cis/trans stereoisomers in moderate yields. These products could also be prepared by onepot, three-component reaction of pentafluorophenylaldehyde, anilines, and enol ethers under the same reaction condition. Mild and neutral reaction conditions, facile experimental procedure, and low price of iodine should make this method attractive for practical synthesis of many fluorinated tetrahydroquinoline derivatives. (C) 2009 Elsevier Ltd. All rights reserved.
Vibrational spectra of polyfluoroaromatic compounds containing the azomethine group