Regioselective Synthesis of Novel Perfluoroalkylated Fused Pyridines and 3-(Aminomethylene)thiochroman-4-ones from 3-(Perfluoroalkanoyl)thiochromenones and Amines
Halogenation of fluorinated cyclic 1,3-dicarbonyl compounds: new aspects of synthetic application
作者:Dmitri V. Sevenard、Mikhail Vorobyev、Vyacheslav Ya. Sosnovskikh、Helma Wessel、Olesya Kazakova、Vera Vogel、Nikolay E. Shevchenko、Valentine G. Nenajdenko、Enno Lork、Gerd-Volker Röschenthaler
DOI:10.1016/j.tet.2009.06.122
日期:2009.9
synthetic relevance of the polyhalogenated compounds obtained was demonstrated by the synthesis of several new heterocycles. An aromatization via a halogenation–dehydrohalogenation sequence proved to be a rewarding synthetic route to 2-(fluoroacyl)phenols and previously unknown 3-(fluoroacyl)thiochromones. The structure of one of the synthesized compounds was confirmed by X-ray diffraction analysis
Regioselective Synthesis of Novel Perfluoroalkylated Fused Pyridines and 3-(Aminomethylene)thiochroman-4-ones from 3-(Perfluoroalkanoyl)thiochromenones and Amines
The regioselectivity of reactions of 3-(perfluoroacyl)-4H-thiochromen-4-ones with a range of hetaryl, aryl, and alkyl amines was examined. The reactions provide ready access to polyfluoroalkylated fused pyridines and thiochromen-4-ones.