Reactions of 2,3-epoxypolyfluoroalkanes with triethylamine
作者:L. V. Saloutina、M. I. Kodess、A. Ya. Zapevalov
DOI:10.1007/bf00700169
日期:1994.12
The reactions of 2,3-epoxyperfluoro- and 2,3-epoxy-ω-hydropolyfluoroalkanes with excess triethylamine at elevated temperatures yield secondary alcohols, which are the reduction products of intermediate isomeric ketones. Ring-opening occurs preferentially from the side of the less bulky trifluoromethyl group in all compounds except 2,3-epoxy-6-hydroundecafluorohexane.
5-di(polyfluoroalkyl)-1,3-thiazolines, respectively. Asymmetric oxiranes yield mixtures of regioisomers, and the ring opening has been found to occur mainly near the bulkier fluoroalkyl group. The reaction with thiourea proceeds stereospecifically in dimethyl sulfoxide. The molecular structure of E-isomers of 2-amino-5-fluoro-4-hydroxy-4,5-bis(trifluoromethyl)-1,3-thiazoline and 2-amino-5-fluoro-5-heptafluorop
It has been found that the reactions of polyfluoro-2,3-epoxyalkanes with ethylenediamine and 2-aminoethanol yield 2,3-di(polyfluoroalkyl)- 1,5,6-trihydro-1,4-diazin-2-ols and 2,3-di(polyfluoroalkyl)-5,6-dihydro-1,4-oxazin-2-ols, respectively. In the case of unsymmetrical oxiranes mixtures of regioisomeric heterocyclic compounds have been obtained. These reactions were found to give some by products-N,N'-bis(polyfluoroacyl) ethylenediamines and N-polyfluoroacyl-2-aminoethanols. (C) 1998 Elsevier Science S.A.
Saloutina; Zapevalov; Kodess, Russian Journal of Nondestructive Testing, 1997, vol. 33, # 2, p. 265 - 272
作者:Saloutina、Zapevalov、Kodess、Saloutin
DOI:——
日期:——
Saloutina, L. V.; Zapevalov, A. Ya., Russian Journal of Organic Chemistry, 1993, vol. 29, # 7.1, p. 1108 - 1117