P 43 Perfluoroepoxyoxolanes in the synthesis of fluorine-containing heterocycles [Electronic resource] / V. I. Filyakova, A. Ya. Zapevalov, M. I. Kodess, P. A. Slepukhin, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2009. - Vol. 45, № 6. - P884-889. - Bibliogr. : p. 889 (15 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PERFLUOROEPOXYOXOLANES -- HETEROCYCLES -- FLUORINE-CONTAINING HETEROCYCLES -- NUCLEOPHILES -- DIFUNCTIONAL NUCLEOPHILES -- OXIRANE RING Аннотация: Perfluoro-3,4-epoxyoxolane and 3,4-epoxy-2- trifluoromethylpentafluorooxolane readily reacted with difunctional nucleophiles via opening of the oxirane ring and subsequent heterocyclization. Their reactions with thiourea and o-phenylenediamine gave new fluorine-containing fused heterocyclic compounds 2-amino-3a-hydroxy-4,4,6,6,6a-pentafluoro-3a,4,6, 6a-tetrahydrofuro[3,4-d][1,3]thiazole and 1,1,3,3-tetrafluoro- and 1-trifluoromethyl-1,3,3-trifluoro-1,3-dihydrofuro[3,4-b]quinoxalines, respectively. The molecular and crystalline structures of the products were determined by X-ray analysis. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2009, 45 (6), 884.pdf |