A Convenient Synthesis and Chemical Properties of 3-Acylamino-6-polyfluoroalkyl-2<i>H</i>-pyran-2-ones
作者:Igor I. Gerus、Günter Haufe、Nataliya A. Tolmachova、Sergey I. Vdovenko、Roland Fröhlich
DOI:10.1055/s-2005-865290
日期:——
A number of 3-acylamino-6-polyfluoroalkyl-2H-pyran-2-ones 3 were synthesized from β-alkoxyvinyl polyfluoroalkyl ketones 1 and N-acylglycines 2 in acetic anhydride in high yield. The reactions of trifluoromethyl-containing 2H-pyran-2-one 3b with O- and N-nucleophiles were studied and 3-N-benzoylamino-6-hydroxy-6-trifluoromethyl-5,6-dihydro-2H-pyran-2-one (13), 3-N-benzoylamino-6-hydroxy-6-trifluoromethyl-5,6-dihydro-2H-pyridin-2-one (14a), and N- and O-substituted 3-(N-benzoylamino)-6-trifluoromethyl-2H-pyridin-2-ones (15c,e, and 16) were synthesized.
许多3-酰氨基-6-多氟烷基-2H-吡喃-2-酮3,从β-烷氧基乙烯基多氟烷基酮1和N-酰基甘氨酸2在醋酐中高效合成。研究了含三氟甲基的2H-吡喃-2-酮3b与O-和N-亲核试剂的反应,合成了3-N-苯甲酰氨基-6-羟基-6-三氟甲基-5,6-二氢-2H-吡喃-2-酮13,3-N-苯甲酰氨基-6-羟基-6-三氟甲基-5,6-二氢-2H-吡啶-2-酮14a,以及N-和O-取代的3-(N-苯甲酰氨基)-6-三氟甲基-2H-吡啶-2-酮15c,e和16。