Optically active 4-amino-4-aryl-5,5,5-trifluoropentan-2-ones: Versatile reagents for synthesis of chiral 4-trifluoromethyl-3,4-dihydroazin-2-ones
作者:Volodymyr A. Sukach、Nataliya M. Golovach、Nina V. Melnichenko、Ivan F. Tsymbal、Mykhaylo V. Vovk
DOI:10.1016/j.jfluchem.2008.09.003
日期:2008.12
(thio)ureas and isocyanates derived from enantiomerically enriched 4-amino-4-aryl-5,5,5-trifluoropentan-2-ones affords a novel synthetic access to chiral 4-trifluoromethyl-substituted 3,4-dihydropyrimidin-2(1H)-(thi)ones and 3,4-dihydro-1,3-oxazin-2-ones, respectively.
衍生自对映异构体富集的4-氨基-4-芳基-5,5,5-三氟戊烷-2-酮的二取代(硫代)脲和异氰酸酯的环缩合提供了手性4-三氟甲基取代的3,4-二氢嘧啶的新颖合成途径-2(1 H)-(thi)ones和3,4-dihydro-1,3-oxazin-2-ones。