R 30 Reaction of internal fluoroolefin oxides with camphor thiosemicarbazone [Electronic resource] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 11. - P1522-1527. - Bibliogr. : p. 1527 (9 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): OXIDES -- FLUOROOLEFIN OXIDES -- CAMPHOR THIOSEMICARBAZONE -- DERIVATIVES -- EPOXY DERIVATIVES Аннотация: Epoxy derivatives of internal fluoroolefins (both cis and trans isomers) react in a stereospecific manner with (1S)-or rac-camphor thiosemicarbazone in a polar aprotic medium to give the corresponding 5-fluoro-4-hydroxy-4,5-bis(polyfluoroalkyl)thiazol-2-ylhydrazones. From unsymmetrical 2,3-epoxydodeca-fluorohexane a mixture of regioisomeric hydrazones is formed. According to the 1H and 19F NMR data, the resulting trans-hydrazones in (CD3)2SO and CDCl3 exist as mixtures of diastereoisomers occurring in a dynamic equilibrium. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2001, 37 (11), 1522.pdf |